CVE-2024-26828 Affecting perf package, versions <0:5.14.0-427.31.1.el9_4


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-ALMALINUX9-PERF-8327599
  • published4 Nov 2024
  • disclosed14 Aug 2024

Introduced: 14 Aug 2024

CVE-2024-26828  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 perf to version 0:5.14.0-427.31.1.el9_4 or higher.
This issue was patched in ALSA-2024:5363.

NVD Description

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

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

cifs: fix underflow in parse_server_interfaces()

In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.

CVSS Scores

version 3.1