rhsa-2024_3854
Vulnerability from csaf_redhat
Published
2024-06-12 01:43
Modified
2024-11-15 17:49
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 9.2 Extended Update Support.
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):
* kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090)
* kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg (CVE-2023-51779)
* kernel: kvm: Avoid potential UAF in LPI translation cache (CVE-2024-26598)
* kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)
Bug Fix:
* kernel-rt: update RT source tree to the latest RHEL-9.2 ad hoc schedule build (JIRA:RHEL-38545)
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.
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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"name": "Improper Handling of Exceptional Conditions"
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"text": "2248122"
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{
"category": "description",
"text": "A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Enterprise Linux 6 and 7 are not affected by this CVE as they did not include support for (de)activating x2AVIC mode, introduced upstream in kernel v6.0 with commit 4d1d794.",
"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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{
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{
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{
"category": "description",
"text": "A flaw was found in the Bluetooth subsystem of the Linux kernel. A race condition between the bt_sock_recvmsg() and bt_sock_ioctl() functions could lead to a use-after-free on a socket buffer (\"skb\"). This flaw allows a local user to cause a denial of service condition or potential code execution.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw has been rated as having a Moderate impact because it is believed to be difficult to exploit and it is not clear whether or not it could be used to achieve local privilege escalation.",
"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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"summary": "RHBZ#2281350",
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{
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-52667",
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{
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{
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{
"category": "description",
"text": "A flaw was found in the Linux kernel pertaining to a potential use-after-free (UAF) scenario in a system involving Logical Partitioning Interrupts (LPI) translation cache operations. Specifically, the issue arises when a cache hit occurs concurrently with an operation that invalidates the cache, such as a DISCARD ITS command. The root cause is traced to vgic_its_check_cache() not appropriately managing the reference count of the vgic_irq object. Upon returning from this function, the reference count of vgic_irq is not incremented. This issue can lead to the object being prematurely freed while still in use by other parts of the system, potentially resulting in undefined behavior or system instability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: kvm: Avoid potential UAF in LPI translation cache",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The vulnerability is assessed as having a Moderate severity due to its potential to cause system instability or undefined behavior under specific conditions. Specifically, the issue arises from concurrent operations involving the LPI translation cache and commands that invalidate this cache, such as DISCARD ITS commands. The root cause lies in vgic_its_check_cache() failing to increment the reference count of the vgic_irq object before releasing the lock. This oversight can lead to a use-after-free scenario where the object may be prematurely freed while still in use elsewhere in the system. As a consequence, if the object is accessed or modified after being freed, it can result in unpredictable behavior, crashes, or even security vulnerabilities if an attacker can control the timing of cache invalidation and subsequent accesses.",
"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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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2024-26598"
},
{
"category": "external",
"summary": "RHBZ#2265801",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2265801"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-26598",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26598"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-26598",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26598"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024022338-CVE-2024-26598-24f4@gregkh/T/#u",
"url": "https://lore.kernel.org/linux-cve-announce/2024022338-CVE-2024-26598-24f4@gregkh/T/#u"
}
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Loading...
Loading...
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.