Stack-based Buffer Overflow Affecting bpftool package, versions <0:4.18.0-553.5.1.el8_10


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-BPFTOOL-6417264
  • published14 Mar 2024
  • disclosed6 Mar 2024

Introduced: 6 Mar 2024

CVE-2023-52606  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-553.5.1.el8_10 or higher.
This issue was patched in RHSA-2024:3618.

NVD Description

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

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

powerpc/lib: Validate size for vector operations

Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr().

Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption.

CVSS Scores

version 3.1