rhsa-2023_6901
Vulnerability from csaf_redhat
Published
2023-11-14 15:24
Modified
2024-09-14 03:04
Summary
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement 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: tun: double free in tun_free_netdev (CVE-2022-4744)
* kernel: net/sched: cls_u32 component reference counter leak (CVE-2023-3609)
* kernel: net/sched: sch_qfq vulnerability (CVE-2023-3611)
* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)
* kernel: out-of-bounds write in qfq_change_class function (CVE-2023-31436)
* kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait (CVE-2021-43975)
* kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)
* kernel: use-after-free and info leak in l2cap_conn_del and l2cap_parse_conf_req (CVE-2022-3640, CVE-2022-42895)
* kernel: double free in usb_8dev_start_xmit (CVE-2022-28388)
* kernel: vmwgfx: multiple vulnerabilities (CVE-2022-38457, CVE-2022-40133, CVE-2023-33951, CVE-2023-33952)
* hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)
* kernel: KVM: multiple vulnerabilities (CVE-2022-45869, CVE-2023-4155, CVE-2023-30456)
* kernel: memory leak in ttusb_dec_exit_dvb (CVE-2022-45887)
* kernel: speculative pointer dereference in do_prlimit in kernel/sys.c (CVE-2023-0458)
* kernel: use-after-free in qdisc_graft (CVE-2023-0590)
* kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)
* kernel: HID: check empty report_list in hid_validate_values (CVE-2023-1073)
* kernel: sctp: fail if no bound addresses can be used for a given scope (CVE-2023-1074)
* kernel: hid: Use After Free in asus_remove (CVE-2023-1079)
* kernel: use-after-free in drivers/media/rc/ene_ir.c (CVE-2023-1118)
* kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206)
* kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252)
* kernel: denial of service in tipc_conn_close (CVE-2023-1382)
* kernel: Use after free bug in btsdio_remove (CVE-2023-1989)
* kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)
* kernel: ext4: use-after-free in ext4_xattr_set_entry (CVE-2023-2513)
* kernel: fbcon: shift-out-of-bounds in fbcon_set_font (CVE-2023-3161)
* kernel: out-of-bounds access in relay_file_read (CVE-2023-3268)
* kernel: xfrm: NULL pointer dereference in xfrm_update_ae_params (CVE-2023-3772)
* kernel: smsusb: use-after-free caused by do_submit_urb (CVE-2023-4132)
* kernel: Race between task migrating pages and another task calling exit_mmap to release those same pages getting invalid opcode BUG in include/linux/swapops.h (CVE-2023-4732)
* Kernel: denial of service in atm_tc_enqueue (CVE-2023-23455)
* kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545)
* kernel: Denial of service issue in az6027 driver (CVE-2023-28328)
* kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow (CVE-2023-28772)
* kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible (CVE-2023-31084)
* kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove (CVE-2023-33203)
* kernel: saa7134: race condition in saa7134_finidev (CVE-2023-35823)
* kernel: dm1105: race condition in dm1105_remove.c (CVE-2023-35824)
* kernel: r592: race condition in r592_remove (CVE-2023-35825)
* kernel: net/tls: tls_is_tx_ready checked list_entry (CVE-2023-1075)
* kernel: use-after-free bug in remove function xgene_hwmon_remove (CVE-2023-1855)
* kernel: Use after free in r592_remove (CVE-2023-3141)
* kernel: gfs2: NULL pointer dereference in gfs2_evict_inode (CVE-2023-3212)
For more details about the security issue(s), 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 8.9 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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"title": "kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait() in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c"
},
{
"cve": "CVE-2022-3594",
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"name": "Logging of Excessive Data"
},
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"text": "2149024"
}
],
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{
"category": "description",
"text": "A vulnerability was found in intr_callback in drivers/net/usb/r8152.c in the BPF component in the Linux Kernel. The manipulation leads to logging excessive data, where an attack can be launched remotely.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Rate limit overflow messages in r8152 in intr_callback",
"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-2022-3594"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3594",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3594"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93e2be344a7db169b7119de21ac1bf253b8c6907",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93e2be344a7db169b7119de21ac1bf253b8c6907"
}
],
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{
"category": "vendor_fix",
"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",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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{
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{
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"text": "A vulnerability was found in the Linux Kernel in the l2cap_conn_del in net/bluetooth/l2cap_core.c function in the Bluetooth component. This issue leads to a use-after-free problem.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.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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"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979",
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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: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c"
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],
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{
"category": "description",
"text": "A double-free flaw was found in the Linux kernel\u2019s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: tun: avoid double free in tun_free_netdev",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Keeping Red Hat Enterprise Linux version 8 with Moderate severity, because required patch 158b515f703e (see reference) missed. However, currently Red Hat Enterprise Linux version 8 not affected, because previous patch not backported too: 766b0515d5be (\"net: make sure devices go through netdev_wait_all_refs\"). Means that it is not possible to trigger the issue for the Red Hat Enterprise Linux 8, but potentially Red Hat Enterprise Linux version 8 could be vulnerable in future, so still need to fix. For the Red Hat Enterprise Linux version 9 there is known way to reproduce the issue.",
"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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},
{
"category": "external",
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2022-4744"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-4744",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4744"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b515f703e",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b515f703e"
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{
"category": "vendor_fix",
"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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"title": "kernel: double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c"
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{
"cve": "CVE-2022-38457",
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{
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"text": "A use-after-free vulnerability was found in the Linux kernel\u0027s vmwgfx driver in vmw_cmd_res_check. This flaw allows a local, unprivileged attacker with access to either /dev/dri/card0 or /dev/dri/rendererD128, who can issue an ioctl() on the resulting file descriptor, to crash the system, causing a denial of service.",
"title": "Vulnerability description"
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{
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"text": "kernel: vmwgfx: use-after-free in vmw_cmd_res_check",
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-38457"
},
{
"category": "external",
"summary": "RHBZ#2133455",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2133455"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-38457",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-38457"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-38457",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38457"
}
],
"release_date": "2022-09-09T00:00:00+00:00",
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{
"category": "vendor_fix",
"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: vmwgfx: use-after-free in vmw_cmd_res_check"
},
{
"cve": "CVE-2022-40133",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2022-09-09T00:00:00+00:00",
"ids": [
{
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"text": "2133453"
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],
"notes": [
{
"category": "description",
"text": "A use-after-free vulnerability was found in the Linux kernel\u0027s vmwgfx driver in vmw_execbuf_tie_context. This flaw allows a local, unprivileged attacker with access to either /dev/dri/card0 or /dev/dri/rendererD128, who can issue an ioctl() on the resulting file descriptor, to crash the system, causing a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: vmwgfx: use-after-free in vmw_execbuf_tie_context",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Systems making use of the vmwgfx driver are potentially affected by this flaw; systems without the vmwgfx driver loaded are not affected by this flaw.",
"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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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-40133"
},
{
"category": "external",
"summary": "RHBZ#2133453",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2133453"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-40133",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-40133"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-40133",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40133"
}
],
"release_date": "2022-09-09T00:00:00+00:00",
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{
"category": "vendor_fix",
"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-2022-40982",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
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"ids": [
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{
"category": "description",
"text": "A Gather Data Sampling (GDS) transient execution side-channel vulnerability was found affecting certain Intel processors. This issue may allow a local attacker using gather instruction (load from memory) to infer stale data from previously used vector registers on the same physical core.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: Intel: Gather Data Sampling (GDS) side channel vulnerability",
"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.",
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-40982"
},
{
"category": "external",
"summary": "RHBZ#2223949",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2223949"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-40982",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-40982"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-40982",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40982"
},
{
"category": "external",
"summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00828.html",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00828.html"
}
],
"release_date": "2023-08-08T06:30:00+00:00",
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{
"category": "vendor_fix",
"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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{
"category": "description",
"text": "An information leak vulnerability was found in the Linux kernel\u0027s implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_parse_conf_req function. An attacker with physical access within the range of standard Bluetooth transmission could use this flaw to leak kernel pointers via Bluetooth if within proximity of the victim.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Enterprise Linux 6 is not affected by this flaw as it did not include support for parsing Extended Flow Specification option in L2CAP Config Request (upstream commit 42dceae2).",
"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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"title": "Vulnerability description"
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{
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"title": "kernel: use-after-free bug in remove function xgene_hwmon_remove"
},
{
"cve": "CVE-2023-1989",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2023-04-11T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2185945"
}
],
"notes": [
{
"category": "description",
"text": "A use-after-free flaw was found in btsdio_remove in drivers\\bluetooth\\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Use after free bug in btsdio_remove due to race condition",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Because successful exploitation of this flaw requires that a system supports SDIO hardware and that an attacker has control over attaching and detaching that hardware, Red Hat assesses the impact of this vulnerability as Moderate.",
"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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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-1989"
},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2185945"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-1989",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-1989"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-1989",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1989"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088"
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{
"category": "vendor_fix",
"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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"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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{
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"name": "Exposure of Sensitive Information to an Unauthorized Actor"
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{
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"text": "It was found that the Linux Kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The kernel failed to protect applications that attempted to protect against Spectre v2 leaving them open to attack from other processes running on the same physical core in another hyperthread.",
"title": "Vulnerability description"
},
{
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"text": "kernel: Spectre v2 SMT mitigations problem",
"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",
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},
{
"category": "external",
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-1998"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-1998",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1998"
},
{
"category": "external",
"summary": "https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx",
"url": "https://github.com/google/security-research/security/advisories/GHSA-mj4w-6495-6crx"
}
],
"release_date": "2023-04-12T00:00:00+00:00",
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{
"category": "vendor_fix",
"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",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
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],
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{
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"text": "A flaw was found in the Linux Kernel, leading to a denial of service. This issue occurs due to a possible recursive locking scenario, resulting in a deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-component.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: A possible deadlock in dm_get_inactive_table in dm- ioctl.c leads to dos",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Because exploitation of this flaw requires that an attacker has privileges sufficient to manage md arrays, Red Hat assesses the impact of this vulnerability as Low.",
"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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{
"category": "external",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-2269",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2269"
},
{
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"summary": "https://lore.kernel.org/lkml/ZD1xyZxb3rHot8PV@redhat.com/t/",
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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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},
{
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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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{
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"name": "Out-of-bounds Read"
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"text": "2215502"
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],
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{
"category": "description",
"text": "An out-of-bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw allows a local attacker to crash the system or leak kernel internal information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: out-of-bounds access in relay_file_read",
"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-2023-3268"
},
{
"category": "external",
"summary": "RHBZ#2215502",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2215502"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-3268",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3268"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-3268",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3268"
},
{
"category": "external",
"summary": "https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc@wangsu.com/T/",
"url": "https://lore.kernel.org/lkml/1682238502-1892-1-git-send-email-yangpc@wangsu.com/T/"
}
],
"release_date": "2023-04-19T06:30:00+00:00",
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{
"category": "vendor_fix",
"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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"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
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"text": "A double-free flaw was found in u32_set_parms in net/sched/cls_u32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() 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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{
"category": "external",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-3609",
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{
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"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc",
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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: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails"
},
{
"cve": "CVE-2023-3611",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2023-07-24T00:00:00+00:00",
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"text": "2225191"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds memory write flaw was found in qfq_change_agg in net/sched/sch_qfq.c in the Traffic Control (QoS) subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead",
"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/security/cve/CVE-2023-3611"
},
{
"category": "external",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-3611",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3611"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64"
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{
"category": "vendor_fix",
"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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"privilegesRequired": "LOW",
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"text": "Red Hat Enterprise Linux 6 and 7 are not affected by this flaw, as they did not include support for KVM AMD Secure Encrypted Virtualization (SEV). \nNote: AMD SEV is currently provided as a Technology Preview in RHEL 8, therefore, it is unsupported for production use. For additional details see https://access.redhat.com/articles/4491591 and https://access.redhat.com/support/offerings/techpreview.",
"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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{
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{
"category": "description",
"text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
"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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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-4206",
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},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81"
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{
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec"
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{
"category": "external",
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8"
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{
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"url": "https://lore.kernel.org/netdev/193d6cdf-d6c9-f9be-c36a-b2a7551d5fb6@mojatatu.com/"
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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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{
"cve": "CVE-2023-4207",
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"text": "2225511"
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{
"category": "description",
"text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
"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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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-4207",
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{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81"
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{
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec"
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8"
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"url": "https://lore.kernel.org/netdev/193d6cdf-d6c9-f9be-c36a-b2a7551d5fb6@mojatatu.com/"
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{
"cve": "CVE-2023-4208",
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"text": "2225511"
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{
"category": "description",
"text": "There are 3 CVEs for the use-after-free flaw found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. \r\nA local user could use any of these flaws to crash the system or potentially escalate their privileges on the system.\r\n\r\nSimilar CVE-2023-4128 was rejected as a duplicate.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route",
"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": "RHBZ#2225511",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-4208",
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},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81"
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{
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec"
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{
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8"
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"url": "https://lore.kernel.org/netdev/193d6cdf-d6c9-f9be-c36a-b2a7551d5fb6@mojatatu.com/"
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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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{
"cve": "CVE-2023-4732",
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"text": "A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.",
"title": "Vulnerability description"
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{
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"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": "description",
"text": "A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TC_ACT_SHOT condition rather than valid classification results.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion",
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},
{
"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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},
{
"category": "external",
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},
{
"category": "external",
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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: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion"
},
{
"cve": "CVE-2023-26545",
"cwe": {
"id": "CWE-415",
"name": "Double Free"
},
"discovery_date": "2023-02-25T00:00:00+00:00",
"ids": [
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{
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"text": "A double-free flaw was found in the Linux kernel when the MPLS implementation handled sysctl allocation failures. This issue could allow a local user to cause a denial of service or possibly execute arbitrary code.",
"title": "Vulnerability description"
},
{
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"text": "kernel: mpls: double free on sysctl allocation failure",
"title": "Vulnerability summary"
},
{
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"text": "Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not include MPLS routing support, which was introduced upstream in version 4.1-rc1 (commit 0189197 \"mpls: Basic routing support\").",
"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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"text": "A flaw was found in the KVM\u0027s Intel nested virtualization feature (nVMX). The effective values of the guest CR0 and CR4 registers could differ from those included in the VMCS12. In rare circumstances (i.e., kvm_intel module loaded with parameters nested=1 and ept=0) this could allow a malicious guest to crash the host system, causing a denial of service.",
"title": "Vulnerability description"
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"text": "kernel: KVM: nVMX: missing consistency checks for CR0 and CR4",
"title": "Vulnerability summary"
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"text": "Red Hat currently provides the nested virtualization feature as a Technology Preview. Nested virtualization is therefore unsupported for production use. For more information please refer to https://access.redhat.com/solutions/21101 and https://access.redhat.com/support/offerings/techpreview.",
"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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"text": "An out-of-bounds memory access flaw was found in the Linux kernel\u2019s traffic control (QoS) subsystem in how a user triggers the qfq_change_class function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: out-of-bounds write in qfq_change_class function",
"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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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-31436",
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{
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"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3037933448f60f9acb705997eae62013ecb81e0d",
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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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"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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"title": "kernel: dm1105: race condition leading to use-after-free in dm1105_remove.c()"
},
{
"cve": "CVE-2023-35825",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2023-06-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2215837"
}
],
"notes": [
{
"category": "description",
"text": "A race condition was found in the Linux kernel\u0027s r592 device driver, when removing the module before cleanup in the r592_remove function. This can result in a use-after-free issue, possibly leading to a system crash or other undefined behaviors.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: r592: race condition leading to use-after-free in r592_remove()",
"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-2023-35825"
},
{
"category": "external",
"summary": "RHBZ#2215837",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2215837"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-35825",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-35825"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-35825",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35825"
}
],
"release_date": "2023-06-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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