Stack-based Buffer Overflow Affecting kernel-tools package, versions <0:5.14.0-284.80.1.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELTOOLS-7832782
  • published26 Aug 2024
  • disclosed21 May 2024

Introduced: 21 May 2024

CVE-2023-52735  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-tools to version 0:5.14.0-284.80.1.el9_2 or higher.
This issue was patched in RHSA-2024:5672.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself

sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak.

[1] https://lore.kernel.org/all/00000000000073b14905ef2e7401@google.com/

CVSS Scores

version 3.1