rhsa-2024_1332
Vulnerability from csaf_redhat
Published
2024-03-14 14:58
Modified
2024-11-15 17:46
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
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):
* sched/membarrier: reduce the ability to hammer on sys_membarrier (CVE-2024-26602)
* use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)
* use-after-free in sch_qfq network scheduler (CVE-2023-4921)
* IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)
* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)
* nf_tables: use-after-free vulnerability in the nft_verdict_init() function (CVE-2024-1086)
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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"text": "A use-after-free flaw was found in the Linux kernel\u0027s implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_connect and l2cap_le_connect_req functions. An attacker with physical access within the range of standard Bluetooth transmission could execute code leaking kernel memory via Bluetooth if within proximity of the victim.",
"title": "Vulnerability description"
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"text": "kernel: use-after-free in l2cap_connect and l2cap_le_connect_req 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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"title": "Vulnerability description"
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{
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"text": "kernel: use-after-free in sch_qfq network scheduler",
"title": "Vulnerability summary"
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"title": "Vulnerability description"
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{
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"text": "kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment",
"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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{
"category": "external",
"summary": "RHBZ#2230042",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2230042"
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-38409"
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"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-38409",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38409"
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"text": "This flaw is rated as having an Important impact. There is the limitation that it can only be exploited by a local user with access to Netfilter, but can still allow privilege escalation if user namespaces are enabled and Netfilter is being used.",
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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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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier"
}
]
}
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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.