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Red Hat Security Advisory: kpatch-patch-5_14_0-427_13_1, kpatch-patch-5_14_0-427_31_1, kpatch-patch-5_14_0-427_44_1, kpatch-patch-5_14_0-427_55_1, and kpatch-patch-5_14_0-427_68_2 security update

0
High
Published: 08/28/2025 (08/28/2025, 05:16:31 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

A security update for Red Hat Enterprise Linux 9.4 addresses a vulnerability in the kernel live patch module for kernel version 5.14.0-427.13.1.el9_4. The vulnerability (CVE-2025-38471) involves the kernel TLS implementation where the queue was not always refreshed when reading a socket. This update requires a system reboot to take effect and is rated as having an important security impact by Red Hat.

Affected software

redhat/kpatch-patch-5_14_0-427_13_1
pkg:rpm/redhat/kpatch-patch-5_14_0-427_13_1
Affected versions
=5.14.0-427.13.1.el9_4

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/28/2026, 22:30:57 UTC

Technical Analysis

The vulnerability CVE-2025-38471 affects the kernel live patch module used by the kpatch utility on Red Hat Enterprise Linux 9.4 with kernel version 5.14.0-427.13.1.el9_4. The issue is in the kernel TLS code where the queue was not always refreshed when reading from a socket, potentially leading to use-after-free conditions (CWE-416). Red Hat has released multiple kpatch-patch updates to address this issue. The update requires a reboot to apply the fix. No CVSS score is provided in the advisory, but Red Hat rates the update as important.

Potential Impact

The vulnerability affects the kernel's TLS socket reading functionality, which could lead to use-after-free conditions. This may impact system stability or security when handling TLS traffic at the kernel level. The advisory does not report known exploits in the wild. The impact is rated as important by Red Hat, indicating a significant security concern but not necessarily critical.

Mitigation Recommendations

Red Hat has released updated kpatch-patch packages for kernel 5.14.0-427.13.1.el9_4 to fix this vulnerability. Users should apply the provided security updates and reboot their systems for the patch to take effect. Refer to the Red Hat advisory RHSA-2025:14811 and the update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2025:14811
Cve Count
1
Additional Cves
[]
Cvss Version
null

Threat ID: 6a419cb627e9c79719abd403

Added to database: 06/28/2026, 22:14:14 UTC

Last enriched: 06/28/2026, 22:30:57 UTC

Last updated: 06/30/2026, 20:51:24 UTC

Views: 4

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