Use After Free Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-477.15.1.rt7.278.el8_8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-3362010
  • published16 Mar 2023
  • disclosed15 Mar 2023

Introduced: 15 Mar 2023

CVE-2023-28466  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-477.15.1.rt7.278.el8_8 or higher.
This issue was patched in RHSA-2023:3819.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference).

CVSS Scores

version 3.1