rhsa-2022_1975
Vulnerability from csaf_redhat
Published
2022-05-10 13:43
Modified
2024-11-06 00:48
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)
* kernel: avoid cyclic entity chains due to malformed USB descriptors (CVE-2020-0404)
* kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974)
* kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941)
* kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (CVE-2021-3612)
* kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669)
* kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743)
* kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (CVE-2021-3744)
* kernel: possible use-after-free in bluetooth module (CVE-2021-3752)
* kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks (CVE-2021-3759)
* kernel: DoS in ccp_run_aes_gcm_cmd() function (CVE-2021-3764)
* kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772)
* kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients (CVE-2021-3773)
* kernel: possible leak or coruption of data residing on hugetlbfs (CVE-2021-4002)
* kernel: security regression for CVE-2018-13405 (CVE-2021-4037)
* kernel: Buffer overwrite in decode_nfs_fh function (CVE-2021-4157)
* kernel: cgroup: Use open-time creds and namespace for migration perm checks (CVE-2021-4197)
* kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses (CVE-2021-4203)
* kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322)
* hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715 (CVE-2021-26401)
* kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation (CVE-2021-29154)
* kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159)
* kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c leads to out-of-bounds write (CVE-2021-41864)
* kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739)
* kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (CVE-2021-43389)
* kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device (CVE-2021-43976)
* kernel: use-after-free in the TEE subsystem (CVE-2021-44733)
* kernel: information leak in the IPv6 implementation (CVE-2021-45485)
* kernel: information leak in the IPv4 implementation (CVE-2021-45486)
* hw: cpu: intel: Branch History Injection (BHI) (CVE-2022-0001)
* hw: cpu: intel: Intra-Mode BTI (CVE-2022-0002)
* kernel: Local denial of service in bond_ipsec_add_sa (CVE-2022-0286)
* kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.c (CVE-2022-0322)
* kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes (CVE-2022-1011)
* kernel: use-after-free in nouveau kernel module (CVE-2020-27820)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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{
"category": "description",
"text": "A flaw linked list corruption in the Linux kernel for USB Video Class driver functionality was found in the way user connects web camera to the USB port. A local user could use this flaw to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: avoid cyclic entity chains due to malformed USB descriptors",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-0404"
},
{
"category": "external",
"summary": "RHBZ#1919791",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1919791"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-0404",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-0404"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-0404",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0404"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68035c80e129c4cfec659aac4180354530b26527",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68035c80e129c4cfec659aac4180354530b26527"
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: avoid cyclic entity chains due to malformed USB descriptors"
},
{
"cve": "CVE-2020-13974",
"cwe": {
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"name": "Integer Overflow or Wraparound"
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"ids": [
{
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{
"category": "description",
"text": "A flaw integer overflow in the Linux kernel\u0027s virtual terminal keyboard driver was found in the way the user sends some specific keyboard code multiple times. A local user could use this flaw to crash the system or possibly escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "No code depends on this integer overflow so it is unlikely that the vulnerability can be used for anything apart from crashing the system. The impact has been reduced to Moderate from Important based on this analysis.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-13974"
},
{
"category": "external",
"summary": "RHBZ#2016169",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016169"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-13974",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-13974"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-13974",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13974"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae"
}
],
"release_date": "2020-03-22T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c"
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{
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"organization": "Red Hat",
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"cve": "CVE-2020-27820",
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"ids": [
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{
"category": "description",
"text": "A vulnerability was found in Linux kernel, where a use-after-frees in nouveau\u0027s postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if \"unbind\" the driver).",
"title": "Vulnerability description"
},
{
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"text": "kernel: use-after-free in nouveau kernel module",
"title": "Vulnerability summary"
},
{
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"text": "This flaw is rated as having a Low impact because the issue can only be triggered by an privileged local user (or user with physical access) as the issue only happens during unbinding the driver or removing the device.",
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},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-27820"
},
{
"category": "external",
"summary": "RHBZ#1901726",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1901726"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-27820",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27820"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-27820",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27820"
},
{
"category": "external",
"summary": "https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline@redhat.com/",
"url": "https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline@redhat.com/"
},
{
"category": "external",
"summary": "https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline@redhat.com/",
"url": "https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline@redhat.com/"
},
{
"category": "external",
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"url": "https://lore.kernel.org/dri-devel/20201103194912.184413-4-jcline@redhat.com/"
}
],
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"name": "Out-of-bounds Read"
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{
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"text": "An out-of-bounds (OOB) memory access flaw was found in net/core/filter.c in __bpf_skb_max_len in the Linux kernel. A missing sanity check to the current MTU check may allow a local attacker with special user privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information.",
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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},
{
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"title": "Statement"
},
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"cve": "CVE-2021-3772",
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"name": "Improper Validation of Integrity Check Value"
},
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{
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"text": "2000694"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: sctp: Invalid chunks may be used to remotely remove existing associations",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-3772"
},
{
"category": "external",
"summary": "RHBZ#2000694",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2000694"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-3772",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3772"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3772",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3772"
}
],
"release_date": "2021-09-08T06:38:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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{
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{
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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{
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],
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{
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients"
},
{
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{
"names": [
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],
"cve": "CVE-2021-3923",
"cwe": {
"id": "CWE-200",
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"ids": [
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"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: stack information leak in infiniband RDMA",
"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-3923"
},
{
"category": "external",
"summary": "RHBZ#2019643",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2019643"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-3923",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3923"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3923",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3923"
}
],
"release_date": "2021-12-01T13:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: stack information leak in infiniband RDMA"
},
{
"cve": "CVE-2021-4002",
"cwe": {
"id": "CWE-459",
"name": "Incomplete Cleanup"
},
"discovery_date": "2021-11-22T00:00:00+00:00",
"ids": [
{
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"text": "2025726"
}
],
"notes": [
{
"category": "description",
"text": "A memory leak flaw in the Linux kernel\u0027s hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: possible leak or coruption of data residing on hugetlbfs",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-4002"
},
{
"category": "external",
"summary": "RHBZ#2025726",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2025726"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-4002",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-4002"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-4002",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4002"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=13e4ad2ce8df6e058ef482a31fdd81c725b0f7ea",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=13e4ad2ce8df6e058ef482a31fdd81c725b0f7ea"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4a118f2eead1d6c49e00765de89878288d4b890",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4a118f2eead1d6c49e00765de89878288d4b890"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2021/11/25/1",
"url": "https://www.openwall.com/lists/oss-security/2021/11/25/1"
}
],
"release_date": "2021-11-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"name": "Improper Access Control"
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"text": "A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS.",
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"text": "kernel: security regression for CVE-2018-13405",
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "Vulnerability description"
},
{
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},
{
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{
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{
"category": "description",
"text": "A flaw use-after-free in the Linux kernel USB High Speed Mobile Devices functionality was found in the way user detaches USB device. A local user could use this flaw to crash the system or escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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},
{
"category": "external",
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},
{
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"url": "https://www.cve.org/CVERecord?id=CVE-2021-37159"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-37159",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37159"
},
{
"category": "external",
"summary": "https://www.spinics.net/lists/linux-usb/msg202228.html",
"url": "https://www.spinics.net/lists/linux-usb/msg202228.html"
}
],
"release_date": "2020-10-02T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"confidentialityImpact": "HIGH",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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{
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"id": "CWE-787",
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}
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{
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"text": "An out-of-bounds (OOB) memory write flaw was found in prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the bpf in the Linux kernel. In this flaw, the multiplication to calculate the size could lead to an integer overflow which could allow a local attacker, with a special user privilege, to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c leads to out-of-bounds write",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. This would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack space.\n\nFor the Red Hat Enterprise Linux 7 the eBPF for unprivileged users is always disabled.\nFor the Red Hat Enterprise Linux 8 to confirm the current state, inspect the sysctl with the command:\n\n# cat /proc/sys/kernel/unprivileged_bpf_disabled\n\nThe setting of 1 would mean that unprivileged users can not use eBPF, mitigating the flaw.\n\nA kernel update will be required to mitigate the flaw for the root or users with CAP_SYS_ADMIN capabilities.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-41864"
},
{
"category": "external",
"summary": "RHBZ#2010463",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2010463"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-41864",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-41864"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-41864",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41864"
},
{
"category": "external",
"summary": "https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a",
"url": "https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a"
}
],
"release_date": "2021-09-30T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"text": "A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or escalate privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
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},
{
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},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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{
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: Heap buffer overflow in firedtv driver"
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],
"cve": "CVE-2021-43389",
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"name": "Out-of-bounds Read"
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-43389"
},
{
"category": "external",
"summary": "RHBZ#2013180",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013180"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-43389",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43389"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-43389",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43389"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d"
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}
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-43976"
},
{
"category": "external",
"summary": "RHBZ#2025003",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2025003"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-43976",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-43976"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-43976",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43976"
},
{
"category": "external",
"summary": "https://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home/",
"url": "https://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home/"
}
],
"release_date": "2021-10-31T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device"
},
{
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{
"names": [
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],
"cve": "CVE-2021-44733",
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"discovery_date": "2021-12-09T00:00:00+00:00",
"ids": [
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{
"category": "description",
"text": "A use-after-free flaw in the Linux kernel TEE (Trusted Execution Environment) subsystem was found in the way user calls ioctl TEE_IOC_OPEN_SESSION or TEE_IOC_INVOKE. A local user could use this flaw to crash the system or escalate their privileges on the system. If the Linux system non configured with the CONFIG_PREEMPT option or CONFIG_CPU_SW_DOMAIN_PAN option enabled, then it is unlikely that a user can trigger this issue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in the TEE subsystem",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"url": "https://access.redhat.com/errata/RHSA-2022:1975"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: information leak in the IPv4 implementation"
},
{
"cve": "CVE-2021-47435",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2024-05-22T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2282879"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix mempool NULL pointer race when completing IO\n\ndm_io_dec_pending() calls end_io_acct() first and will then dec md\nin-flight pending count. But if a task is swapping DM table at same\ntime this can result in a crash due to mempool-\u003eelements being NULL:\n\ntask1 task2\ndo_resume\n -\u003edo_suspend\n -\u003edm_wait_for_completion\n bio_endio\n\t\t\t\t -\u003eclone_endio\n\t\t\t\t -\u003edm_io_dec_pending\n\t\t\t\t -\u003eend_io_acct\n\t\t\t\t -\u003ewakeup task1\n -\u003edm_swap_table\n -\u003e__bind\n -\u003e__bind_mempools\n -\u003ebioset_exit\n -\u003emempool_exit\n -\u003efree_io\n\n[ 67.330330] Unable to handle kernel NULL pointer dereference at\nvirtual address 0000000000000000\n......\n[ 67.330494] pstate: 80400085 (Nzcv daIf +PAN -UAO)\n[ 67.330510] pc : mempool_free+0x70/0xa0\n[ 67.330515] lr : mempool_free+0x4c/0xa0\n[ 67.330520] sp : ffffff8008013b20\n[ 67.330524] x29: ffffff8008013b20 x28: 0000000000000004\n[ 67.330530] x27: ffffffa8c2ff40a0 x26: 00000000ffff1cc8\n[ 67.330535] x25: 0000000000000000 x24: ffffffdada34c800\n[ 67.330541] x23: 0000000000000000 x22: ffffffdada34c800\n[ 67.330547] x21: 00000000ffff1cc8 x20: ffffffd9a1304d80\n[ 67.330552] x19: ffffffdada34c970 x18: 000000b312625d9c\n[ 67.330558] x17: 00000000002dcfbf x16: 00000000000006dd\n[ 67.330563] x15: 000000000093b41e x14: 0000000000000010\n[ 67.330569] x13: 0000000000007f7a x12: 0000000034155555\n[ 67.330574] x11: 0000000000000001 x10: 0000000000000001\n[ 67.330579] x9 : 0000000000000000 x8 : 0000000000000000\n[ 67.330585] x7 : 0000000000000000 x6 : ffffff80148b5c1a\n[ 67.330590] x5 : ffffff8008013ae0 x4 : 0000000000000001\n[ 67.330596] x3 : ffffff80080139c8 x2 : ffffff801083bab8\n[ 67.330601] x1 : 0000000000000000 x0 : ffffffdada34c970\n[ 67.330609] Call trace:\n[ 67.330616] mempool_free+0x70/0xa0\n[ 67.330627] bio_put+0xf8/0x110\n[ 67.330638] dec_pending+0x13c/0x230\n[ 67.330644] clone_endio+0x90/0x180\n[ 67.330649] bio_endio+0x198/0x1b8\n[ 67.330655] dec_pending+0x190/0x230\n[ 67.330660] clone_endio+0x90/0x180\n[ 67.330665] bio_endio+0x198/0x1b8\n[ 67.330673] blk_update_request+0x214/0x428\n[ 67.330683] scsi_end_request+0x2c/0x300\n[ 67.330688] scsi_io_completion+0xa0/0x710\n[ 67.330695] scsi_finish_command+0xd8/0x110\n[ 67.330700] scsi_softirq_done+0x114/0x148\n[ 67.330708] blk_done_softirq+0x74/0xd0\n[ 67.330716] __do_softirq+0x18c/0x374\n[ 67.330724] irq_exit+0xb4/0xb8\n[ 67.330732] __handle_domain_irq+0x84/0xc0\n[ 67.330737] gic_handle_irq+0x148/0x1b0\n[ 67.330744] el1_irq+0xe8/0x190\n[ 67.330753] lpm_cpuidle_enter+0x4f8/0x538\n[ 67.330759] cpuidle_enter_state+0x1fc/0x398\n[ 67.330764] cpuidle_enter+0x18/0x20\n[ 67.330772] do_idle+0x1b4/0x290\n[ 67.330778] cpu_startup_entry+0x20/0x28\n[ 67.330786] secondary_start_kernel+0x160/0x170\n\nFix this by:\n1) Establishing pointers to \u0027struct dm_io\u0027 members in\ndm_io_dec_pending() so that they may be passed into end_io_acct()\n_after_ free_io() is called.\n2) Moving end_io_acct() after free_io().",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: dm: fix mempool NULL pointer race when completing IO",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-47435"
},
{
"category": "external",
"summary": "RHBZ#2282879",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282879"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-47435",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47435"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47435",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47435"
}
],
"release_date": "2024-05-22T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
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{
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"attackVector": "LOCAL",
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"title": "kernel: dm: fix mempool NULL pointer race when completing IO"
},
{
"cve": "CVE-2021-47544",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"discovery_date": "2024-05-24T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2283406"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: fix page frag corruption on page fault\n\nSteffen reported a TCP stream corruption for HTTP requests\nserved by the apache web-server using a cifs mount-point\nand memory mapping the relevant file.\n\nThe root cause is quite similar to the one addressed by\ncommit 20eb4f29b602 (\"net: fix sk_page_frag() recursion from\nmemory reclaim\"). Here the nested access to the task page frag\nis caused by a page fault on the (mmapped) user-space memory\nbuffer coming from the cifs file.\n\nThe page fault handler performs an smb transaction on a different\nsocket, inside the same process context. Since sk-\u003esk_allaction\nfor such socket does not prevent the usage for the task_frag,\nthe nested allocation modify \"under the hood\" the page frag\nin use by the outer sendmsg call, corrupting the stream.\n\nThe overall relevant stack trace looks like the following:\n\nhttpd 78268 [001] 3461630.850950: probe:tcp_sendmsg_locked:\n ffffffff91461d91 tcp_sendmsg_locked+0x1\n ffffffff91462b57 tcp_sendmsg+0x27\n ffffffff9139814e sock_sendmsg+0x3e\n ffffffffc06dfe1d smb_send_kvec+0x28\n [...]\n ffffffffc06cfaf8 cifs_readpages+0x213\n ffffffff90e83c4b read_pages+0x6b\n ffffffff90e83f31 __do_page_cache_readahead+0x1c1\n ffffffff90e79e98 filemap_fault+0x788\n ffffffff90eb0458 __do_fault+0x38\n ffffffff90eb5280 do_fault+0x1a0\n ffffffff90eb7c84 __handle_mm_fault+0x4d4\n ffffffff90eb8093 handle_mm_fault+0xc3\n ffffffff90c74f6d __do_page_fault+0x1ed\n ffffffff90c75277 do_page_fault+0x37\n ffffffff9160111e page_fault+0x1e\n ffffffff9109e7b5 copyin+0x25\n ffffffff9109eb40 _copy_from_iter_full+0xe0\n ffffffff91462370 tcp_sendmsg_locked+0x5e0\n ffffffff91462370 tcp_sendmsg_locked+0x5e0\n ffffffff91462b57 tcp_sendmsg+0x27\n ffffffff9139815c sock_sendmsg+0x4c\n ffffffff913981f7 sock_write_iter+0x97\n ffffffff90f2cc56 do_iter_readv_writev+0x156\n ffffffff90f2dff0 do_iter_write+0x80\n ffffffff90f2e1c3 vfs_writev+0xa3\n ffffffff90f2e27c do_writev+0x5c\n ffffffff90c042bb do_syscall_64+0x5b\n ffffffff916000ad entry_SYSCALL_64_after_hwframe+0x65\n\nThe cifs filesystem rightfully sets sk_allocations to GFP_NOFS,\nwe can avoid the nesting using the sk page frag for allocation\nlacking the __GFP_FS flag. Do not define an additional mm-helper\nfor that, as this is strictly tied to the sk page frag usage.\n\nv1 -\u003e v2:\n - use a stricted sk_page_frag() check instead of reordering the\n code (Eric)",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: tcp: fix page frag corruption on page fault",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-47544"
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"url": "https://www.cve.org/CVERecord?id=CVE-2021-47544"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47544",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47544"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024052440-CVE-2021-47544-ceb5@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024052440-CVE-2021-47544-ceb5@gregkh/T"
}
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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{
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()\n\nethtool_set_coalesce() now uses both the .get_coalesce() and\n.set_coalesce() callbacks. But the check for their availability is\nbuggy, so changing the coalesce settings on a device where the driver\nprovides only _one_ of the callbacks results in a NULL pointer\ndereference instead of an -EOPNOTSUPP.\n\nFix the condition so that the availability of both callbacks is\nensured. This also matches the netlink code.\n\nNote that reproducing this requires some effort - it only affects the\nlegacy ioctl path, and needs a specific combination of driver options:\n- have .get_coalesce() and .coalesce_supported but no\n .set_coalesce(), or\n- have .set_coalesce() but no .get_coalesce(). Here eg. ethtool doesn\u0027t\n cause the crash as it first attempts to call ethtool_get_coalesce()\n and bails out on error.",
"title": "Vulnerability description"
},
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"text": "kernel: ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47556",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47556"
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"details": "Moderate"
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"title": "kernel: ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()"
},
{
"cve": "CVE-2021-47590",
"cwe": {
"id": "CWE-833",
"name": "Deadlock"
},
"discovery_date": "2024-06-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2293237"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix deadlock in __mptcp_push_pending()\n\n__mptcp_push_pending() may call mptcp_flush_join_list() with subflow\nsocket lock held. If such call hits mptcp_sockopt_sync_all() then\nsubsequently __mptcp_sockopt_sync() could try to lock the subflow\nsocket for itself, causing a deadlock.\n\nsysrq: Show Blocked State\ntask:ss-server state:D stack: 0 pid: 938 ppid: 1 flags:0x00000000\nCall Trace:\n \u003cTASK\u003e\n __schedule+0x2d6/0x10c0\n ? __mod_memcg_state+0x4d/0x70\n ? csum_partial+0xd/0x20\n ? _raw_spin_lock_irqsave+0x26/0x50\n schedule+0x4e/0xc0\n __lock_sock+0x69/0x90\n ? do_wait_intr_irq+0xa0/0xa0\n __lock_sock_fast+0x35/0x50\n mptcp_sockopt_sync_all+0x38/0xc0\n __mptcp_push_pending+0x105/0x200\n mptcp_sendmsg+0x466/0x490\n sock_sendmsg+0x57/0x60\n __sys_sendto+0xf0/0x160\n ? do_wait_intr_irq+0xa0/0xa0\n ? fpregs_restore_userregs+0x12/0xd0\n __x64_sys_sendto+0x20/0x30\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f9ba546c2d0\nRSP: 002b:00007ffdc3b762d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c\nRAX: ffffffffffffffda RBX: 00007f9ba56c8060 RCX: 00007f9ba546c2d0\nRDX: 000000000000077a RSI: 0000000000e5e180 RDI: 0000000000000234\nRBP: 0000000000cc57f0 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ba56c8060\nR13: 0000000000b6ba60 R14: 0000000000cc7840 R15: 41d8685b1d7901b8\n \u003c/TASK\u003e\n\nFix the issue by using __mptcp_flush_join_list() instead of plain\nmptcp_flush_join_list() inside __mptcp_push_pending(), as suggested by\nFlorian. The sockopt sync will be deferred to the workqueue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: mptcp: fix deadlock in __mptcp_push_pending()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-47590"
},
{
"category": "external",
"summary": "RHBZ#2293237",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293237"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-47590",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47590"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-47590",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47590"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024061919-CVE-2021-47590-6db0@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024061919-CVE-2021-47590-6db0@gregkh/T"
}
],
"release_date": "2024-06-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"name": "Use After Free"
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{
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix a user-after-free in add_pble_prm\n\nWhen irdma_hmc_sd_one fails, \u0027chunk\u0027 is freed while its still on the PBLE\ninfo list.\n\nAdd the chunk entry to the PBLE info list only after successful setting of\nthe SD in irdma_hmc_sd_one.",
"title": "Vulnerability description"
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{
"category": "summary",
"text": "kernel: RDMA/irdma: Fix a user-after-free in add_pble_prm",
"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"text": "A flaw was found in hw. The Branch History Injection (BHI) describes a specific form of intra-mode BTI. This flaw allows an unprivileged attacker to manipulate the branch history before transitioning to supervisor or VMX root mode. This issue is an effort to cause an indirect branch predictor to select a specific predictor entry for an indirect branch, and a disclosure gadget at the predicted target will transiently execute. This execution is possible since the relevant branch history may contain branches taken in previous security contexts, and in particular, in other predictor modes.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: cpu: intel: Branch History Injection (BHI)",
"title": "Vulnerability summary"
},
{
"category": "other",
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"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"summary": "https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html",
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "hw: cpu: intel: Branch History Injection (BHI)"
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"cve": "CVE-2022-0002",
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"text": "A flaw was found in hw. The Intra-mode BTI refers to a variant of Branch Target Injection aka SpectreV2 (BTI) where an indirect branch speculates to an aliased predictor entry for a different indirect branch in the same predictor mode, and a disclosure gadget at the predicted target transiently executes. These predictor entries may contain targets corresponding to the targets of an indirect near jump, indirect near call, and near return instructions, even if these branches were only transiently executed. The managed runtimes provide an attacker with the means to create the aliasing required for intra-mode BTI attacks.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: cpu: intel: Intra-Mode BTI",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The current known mechanisms to exploit this issue rely on unprivileged eBPF functionality. Unprivileged eBPF is disabled by default on Red Hat Enterprise Linux.",
"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"cve": "CVE-2022-0322",
"cwe": {
"id": "CWE-681",
"name": "Incorrect Conversion between Numeric Types"
},
"discovery_date": "2021-12-16T00:00:00+00:00",
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"text": "2042822"
}
],
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{
"category": "description",
"text": "A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.c",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-0322"
},
{
"category": "external",
"summary": "RHBZ#2042822",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2042822"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-0322",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0322"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-0322",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0322"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2d859e3fc97e79d907761550dbc03ff1b36479c",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2d859e3fc97e79d907761550dbc03ff1b36479c"
}
],
"release_date": "2021-10-14T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"text": "An information leak flaw was found via ext4_extent_header in fs/ext4/extents.c in the Linux kernel. This flaw could allow a local attacker to cause a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: information leak in copy_page_to_iter() in iov_iter.c",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2060606"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-0850",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0850"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-0850",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0850"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ce3aba43599f0b50adbebff133df8d08a3d5fffe",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ce3aba43599f0b50adbebff133df8d08a3d5fffe"
},
{
"category": "external",
"summary": "https://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8",
"url": "https://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8"
}
],
"release_date": "2021-05-06T19:30:00+00:00",
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{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: information leak in copy_page_to_iter() in iov_iter.c"
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"names": [
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"name": "Use After Free"
},
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{
"category": "description",
"text": "A use-after-free flaw was found in the Linux kernel\u2019s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "For the Red Hat Enterprise Linux the issue actual if fuse or fuse3 package is installed on the system and only privileged user can install it.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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{
"category": "external",
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},
{
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{
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes"
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{
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{
"names": [
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]
}
],
"cve": "CVE-2022-3105",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2022-12-13T00:00:00+00:00",
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"title": "Vulnerability description"
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{
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"cwe": {
"id": "CWE-402",
"name": "Transmission of Private Resources into a New Sphere (\u0027Resource Leak\u0027)"
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{
"category": "description",
"text": "A vulnerability was found in copy_from_user in 64-bit versions of the Linux kernel. This flaw allows a local attacker to bypass the \"access_ok\" sanity check and pass a kernel pointer to copy_from_user(), resulting in kernel data leaking.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Copy_from_user on 64-bit versions may leak kernel information",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-0459",
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},
{
"category": "external",
"summary": "https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c",
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}
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{
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"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cve": "CVE-2023-3022",
"cwe": {
"id": "CWE-843",
"name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
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"system_name": "Red Hat Bugzilla ID",
"text": "2211440"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the IPv6 module of the Linux kernel. The arg.result was not used consistently in fib6_rule_lookup, sometimes holding rt6_info and other times fib6_info. This was not accounted for in other parts of the code where rt6_info was expected unconditionally, potentially leading to a kernel panic in fib6_rule_suppress.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: IPv6: panic in fib6_rule_suppress when fib6_rule_lookup fails",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-3022"
},
{
"category": "external",
"summary": "RHBZ#2211440",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2211440"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-3022",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3022"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-3022",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3022"
}
],
"release_date": "2019-04-24T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-05-10T13:43:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"confidentialityImpact": "NONE",
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"title": "kernel: IPv6: panic in fib6_rule_suppress when fib6_rule_lookup fails"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.