rhsa-2024_2950
Vulnerability from csaf_redhat
Published
2024-05-22 10:16
Modified
2024-12-12 09:52
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 Moderate. 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):
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 8.10 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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},
{
"cve": "CVE-2021-3753",
"cwe": {
"id": "CWE-125",
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"text": "1999589"
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],
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{
"category": "description",
"text": "A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: a race out-of-bound read in vt",
"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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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-3753"
},
{
"category": "external",
"summary": "RHBZ#1999589",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999589"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-3753",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3753"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3753",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3753"
},
{
"category": "external",
"summary": "https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7",
"url": "https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2021/09/01/4",
"url": "https://www.openwall.com/lists/oss-security/2021/09/01/4"
}
],
"release_date": "2021-09-01T11:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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{
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"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
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{
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"text": "2039178"
}
],
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{
"category": "description",
"text": "An out-of-bounds (OOB) memory access flaw was found in the Linux kernel\u0027s eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.",
"title": "Vulnerability description"
},
{
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"text": "kernel: improper input validation may lead to privilege escalation",
"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",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-4204",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4204"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2022/01/11/4",
"url": "https://www.openwall.com/lists/oss-security/2022/01/11/4"
}
],
"release_date": "2022-01-11T12:00:00+00:00",
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{
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"date": "2024-05-22T10:16:27+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: improper input validation may lead to privilege escalation"
},
{
"cve": "CVE-2022-0500",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2022-01-14T00:00:00+00:00",
"ids": [
{
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"text": "2044578"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel\u2019s BPF subsystem due to the way a user loads BTF. This flaw allows a local user to crash or escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges",
"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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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044578"
},
{
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"summary": "https://www.cve.org/CVERecord?id=CVE-2022-0500",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-0500"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-0500",
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},
{
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"details": "Moderate"
}
],
"title": "kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges"
},
{
"cve": "CVE-2022-3565",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2022-10-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2150953"
}
],
"notes": [
{
"category": "description",
"text": "A use-after-free flaw was found in the Linux kernel\u2019s ISDN over IP tunnel functionality in how a local user triggers the release_card() function called from l1oip_cleanup(). This flaw allows a local user to crash or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in l1oip timer handlers",
"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-2022-3565"
},
{
"category": "external",
"summary": "RHBZ#2150953",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2150953"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-3565",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-3565"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-3565",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3565"
}
],
"release_date": "2022-09-30T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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: use-after-free in l1oip timer handlers"
},
{
"acknowledgments": [
{
"names": [
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"organization": "SecCoder Security Lab"
}
],
"cve": "CVE-2022-23222",
"cwe": {
"id": "CWE-763",
"name": "Release of Invalid Pointer or Reference"
},
"discovery_date": "2022-01-14T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2043520"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s adjust_ptr_min_max_vals in the kernel/bpf/verifier.c function. In this flaw, a missing sanity check for *_OR_NULL pointer types that perform pointer arithmetic may cause a kernel information leak issue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: local privileges escalation in kernel/bpf/verifier.c",
"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. \n\nThis 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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},
{
"category": "external",
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},
{
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},
{
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],
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{
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-4244"
},
{
"category": "external",
"summary": "RHBZ#2235306",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2235306"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-4244",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4244"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-4244",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4244"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20230810070830.24064-1-pablo@netfilter.org/",
"url": "https://lore.kernel.org/netdev/20230810070830.24064-1-pablo@netfilter.org/"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20230815223011.7019-1-fw@strlen.de/",
"url": "https://lore.kernel.org/netdev/20230815223011.7019-1-fw@strlen.de/"
}
],
"release_date": "2023-08-28T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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: Use-after-free in nft_verdict_dump due to a race between set GC and transaction"
},
{
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{
"names": [
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}
],
"cve": "CVE-2023-6121",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2023-11-12T00:00:00+00:00",
"ids": [
{
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}
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"notes": [
{
"category": "description",
"text": "An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NVMe: info leak due to out-of-bounds read in nvmet_ctrl_find_get",
"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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{
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}
],
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{
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{
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"text": "A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: local dos vulnerability in scatterwalk_copychunks",
"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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"title": "Vulnerability description"
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{
"category": "summary",
"text": "kernel: null pointer dereference vulnerability in nft_dynset_init()",
"title": "Vulnerability summary"
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{
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"text": "To trigger the issue, it requires the ability to create user/net namespaces.\n\nOn non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0:\n\n# echo \"user.max_user_namespaces=0\" \u003e /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\n\nOn containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation, as the functionality is needed to be enabled.",
"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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"title": "kernel: Null Pointer Dereference vulnerability in ida_free in lib/idr.c"
},
{
"cve": "CVE-2023-6932",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
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"discovery_date": "2023-12-19T00:00:00+00:00",
"ids": [
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"text": "2255283"
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],
"notes": [
{
"category": "description",
"text": "A race condition has been discovered in the Linux kernel\u0027s Internet Group Management Protocol (IGMP) implementation. This vulnerability may enable an attacker to provoke an application crash or potentially escalate privileges locally. By exploiting the race condition, an adversary could disrupt the normal operation of affected systems, leading to service disruption or, in the worst case, unauthorized access to sensitive resources.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in IPv4 IGMP",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability poses a moderate severity risk due to its potential to trigger a use-after-free issue when processing IGMPv2 query packets under specific conditions. An attacker could exploit this flaw by continuously sending crafted IGMPv2 query packets to a vulnerable system, causing a reference count underflow in the multicast group list management. Subsequently, this could lead to a use-after-free scenario, potentially resulting in a denial-of-service condition or other adverse effects. While exploitation requires specific configurations and continuous packet transmission, the impact could be significant, warranting attention and remediation to prevent potential exploitation and system instability.",
"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-2023-6932"
},
{
"category": "external",
"summary": "RHBZ#2255283",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255283"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-6932",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6932"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-6932",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6932"
}
],
"release_date": "2023-12-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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",
"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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"name": "Channel Accessible by Non-Endpoint"
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"text": "2254961"
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],
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{
"category": "description",
"text": "A flaw was found in Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4. This issue may allow certain man-in-the-middle attacks that force a short key length and might lead to discovery of the encryption key and live injection, aka BLUFFS.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth Forward and Future Secrecy Attacks and Defenses",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The vulnerability identified as CVE-2023-24023, dubbed \"Bluetooth Forward and Future Secrecy Attacks and Defenses (BLUFFS),\" is categorized as having moderate severity due to several factors. While it does allow for potential Man-in-The-Middle (MITM) attacks between paired Bluetooth BR/EDR devices, its impact is somewhat limited by certain conditions. Firstly, successful exploitation requires the attacker to be within wireless range of the vulnerable devices during the encryption procedure initiation. Additionally, the attacker\u0027s ability to force a reduction in encryption key length may not guarantee real-time brute-forcing of the key, particularly if it exceeds 7 octets.",
"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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"url": "https://access.redhat.com/security/cve/CVE-2023-24023"
},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254961"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-24023",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-24023"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-24023",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24023"
},
{
"category": "external",
"summary": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/",
"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/"
}
],
"release_date": "2023-12-02T00:00:00+00:00",
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{
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"date": "2024-05-22T10:16:27+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: Bluetooth Forward and Future Secrecy Attacks and Defenses"
},
{
"cve": "CVE-2023-25775",
"cwe": {
"id": "CWE-284",
"name": "Improper Access Control"
},
"discovery_date": "2023-08-11T00:00:00+00:00",
"ids": [
{
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"text": "2231410"
}
],
"notes": [
{
"category": "description",
"text": "An improper access control flaw was found in the Intel(R) Ethernet Controller RDMA driver in the Linux Kernel. This flaw allows an unauthenticated user to enable privilege escalation via network access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: irdma: Improper access control",
"title": "Vulnerability summary"
},
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-25775"
},
{
"category": "external",
"summary": "RHBZ#2231410",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2231410"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-25775",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-25775"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-25775",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25775"
},
{
"category": "external",
"summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00794.html",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00794.html"
}
],
"release_date": "2023-08-11T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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": "A double-free vulnerability was found in the hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux Kernel. This issue may cause a denial of service or privilege escalation.",
"title": "Vulnerability description"
},
{
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"text": "Kernel: double free in hci_conn_cleanup of the bluetooth subsystem",
"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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},
{
"category": "external",
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}
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{
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{
"cve": "CVE-2023-39189",
"cwe": {
"id": "CWE-125",
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},
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{
"category": "description",
"text": "A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: netfilter: nftables out-of-bounds read in nf_osf_match_one()",
"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-2023-39189"
},
{
"category": "external",
"summary": "RHBZ#2226777",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2226777"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-39189",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-39189"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-39189",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39189"
}
],
"release_date": "2023-08-30T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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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"baseScore": 5.1,
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L",
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"title": "Vulnerability description"
},
{
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"title": "Vulnerability summary"
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{
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"text": "Red Hat Enterprise Linux 9 is not affected by this flaw as the `xt_u32` driver is not built.",
"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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{
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},
{
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"title": "Vulnerability description"
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{
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-39193"
},
{
"category": "external",
"summary": "RHBZ#2226787",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2226787"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-39193",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-39193"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-39193",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39193"
},
{
"category": "external",
"summary": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/"
}
],
"release_date": "2023-09-29T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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-2023-39194",
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"id": "CWE-125",
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},
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"ids": [
{
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],
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{
"category": "description",
"text": "A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an information disclosure.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: xfrm: out-of-bounds read in __xfrm_state_filter_match()",
"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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{
"cve": "CVE-2023-45863",
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{
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"text": "An out-of-bounds memory write flaw was found in the load/unload module in the Linux kernel\u0027s kobject functionality, potentially triggering a race condition in the kobject_get_path function. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
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"text": "kernel: lib/kobject.c vulnerable to fill_kobj_path out-of-bounds write",
"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-2023-51780"
},
{
"category": "external",
"summary": "RHBZ#2257682",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2257682"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-51780",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-51780"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-51780",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51780"
},
{
"category": "external",
"summary": "https://github.com/torvalds/linux/commit/24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3",
"url": "https://github.com/torvalds/linux/commit/24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3"
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{
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"date": "2024-05-22T10:16:27+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": "A flaw in the routing table size was found in the ICMPv6 handling of \"Packet Too Big\". The size of the routing table is regulated by periodic garbage collection. However, with \"Packet Too Big Messages\" it is possible to exceed the routing table size and garbage collector threshold. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ICMPv6 \u201cPacket Too Big\u201d packets force a DoS of the Linux kernel by forcing 100% CPU",
"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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"title": "Vulnerability description"
},
{
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"text": "kernel: mm/sparsemem: fix race in accessing memory_section-\u003eusage",
"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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"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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"title": "kernel: netfilter: nf_tables: memory leak when more than 255 elements expired"
},
{
"cve": "CVE-2023-52597",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2024-03-06T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2268311"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: fix setting of fpc register\n\nkvm_arch_vcpu_ioctl_set_fpu() allows to set the floating point control\n(fpc) register of a guest cpu. The new value is tested for validity by\ntemporarily loading it into the fpc register.\n\nThis may lead to corruption of the fpc register of the host process:\nif an interrupt happens while the value is temporarily loaded into the fpc\nregister, and within interrupt context floating point or vector registers\nare used, the current fp/vx registers are saved with save_fpu_regs()\nassuming they belong to user space and will be loaded into fp/vx registers\nwhen returning to user space.\n\ntest_fp_ctl() restores the original user space / host process fpc register\nvalue, however it will be discarded, when returning to user space.\n\nIn result the host process will incorrectly continue to run with the value\nthat was supposed to be used for a guest cpu.\n\nFix this by simply removing the test. There is another test right before\nthe SIE context is entered which will handles invalid values.\n\nThis results in a change of behaviour: invalid values will now be accepted\ninstead of that the ioctl fails with -EINVAL. This seems to be acceptable,\ngiven that this interface is most likely not used anymore, and this is in\naddition the same behaviour implemented with the memory mapped interface\n(replace invalid values with zero) - see sync_regs() in kvm-s390.c.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: KVM: s390: fix setting of fpc register",
"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-2023-52597"
},
{
"category": "external",
"summary": "RHBZ#2268311",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2268311"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-52597"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-52597",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52597"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024030646-CVE-2023-52597-2ed6@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024030646-CVE-2023-52597-2ed6@gregkh/T"
}
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"date": "2024-05-22T10:16:27+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": "Vulnerability description"
},
{
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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.",
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},
{
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{
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},
{
"category": "external",
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},
{
"category": "external",
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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": "NULL Pointer Dereference"
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"ids": [
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{
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"text": "A null pointer dereference flaw was found in the hugetlbfs_fill_super function in the Linux kernel hugetlbfs (HugeTLB pages) functionality. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.",
"title": "Vulnerability description"
},
{
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"text": "kernel: hugetlbfs: Null pointer dereference in hugetlbfs_fill_super function",
"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-2024-0841"
},
{
"category": "external",
"summary": "RHBZ#2256490",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2256490"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-0841",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-0841"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-0841",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0841"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2024-05-22T10:16:27+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-2024-25742",
"discovery_date": "2024-03-21T00:00:00+00:00",
"ids": [
{
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{
"category": "description",
"text": "A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the value stored in EAX while a SEV VM is running.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hw: amd: Instruction raise #VC exception at exit",
"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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"text": "[REJECTED CVE] An issue was identified in the Linux kernel\u0027s netfilter subsystem related to nf_tables. The issue occurs when a positive value, such as NF_ACCEPT, is provided in the upper 16 bits of NF_DROP verdict parameters, which are expected to contain valid errno values (e.g., -EPERM). This improper input handling could lead to memory corruption, potentially allowing attackers to exploit the system.",
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{
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"name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
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{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix IO hang from sbitmap wakeup race\n\nIn blk_mq_mark_tag_wait(), __add_wait_queue() may be re-ordered\nwith the following blk_mq_get_driver_tag() in case of getting driver\ntag failure.\n\nThen in __sbitmap_queue_wake_up(), waitqueue_active() may not observe\nthe added waiter in blk_mq_mark_tag_wait() and wake up nothing, meantime\nblk_mq_mark_tag_wait() can\u0027t get driver tag successfully.\n\nThis issue can be reproduced by running the following test in loop, and\nfio hang can be observed in \u003c 30min when running it on my test VM\nin laptop.\n\n\tmodprobe -r scsi_debug\n\tmodprobe scsi_debug delay=0 dev_size_mb=4096 max_queue=1 host_max_queue=1 submit_queues=4\n\tdev=`ls -d /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*/block/* | head -1 | xargs basename`\n\tfio --filename=/dev/\"$dev\" --direct=1 --rw=randrw --bs=4k --iodepth=1 \\\n \t\t--runtime=100 --numjobs=40 --time_based --name=test \\\n \t--ioengine=libaio\n\nFix the issue by adding one explicit barrier in blk_mq_mark_tag_wait(), which\nis just fine in case of running out of tag.",
"title": "Vulnerability description"
},
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"text": "kernel: blk-mq: fix IO hang from sbitmap wakeup race",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is fixed in RHEL-9.4 and above (including RHEL 8.10)\n~~~\na7f97b4cae32 (in rhel-9.4, rhel-9.5) blk-mq: fix IO hang from sbitmap wakeup race \n098ab94a5112 (in rhel-8.10) blk-mq: fix IO hang from sbitmap wakeup race\n~~~\n\nPlease note that while RHEL-9 kernel-rt still appears as affected, it has been fixed in the same RHSA as RHEL-9 kernel. This is because from RHEL-9.3 onwards, the kernel and kernel-rt fixes are bundled together in a single errata.",
"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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"url": "https://access.redhat.com/errata/RHSA-2024:2950"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: blk-mq: fix IO hang from sbitmap wakeup race"
}
]
}
Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.