Integer Overflow or Wraparound Affecting kernel-azure-devel package, versions <5.14.21-150500.33.57.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-SLES155-KERNELAZUREDEVEL-7254743
  • published14 Jun 2024
  • disclosed13 Jun 2024

Introduced: 13 Jun 2024

CVE-2024-36918  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-azure-devel to version 5.14.21-150500.33.57.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure-devel package and not the kernel-azure-devel package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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

bpf: Check bloom filter map value size

This patch adds a missing check to bloom filter creating, rejecting values above KMALLOC_MAX_SIZE. This brings the bloom map in line with many other map types.

The lack of this protection can cause kernel crashes for value sizes that overflow int's. Such a crash was caught by syzkaller. The next patch adds more guard-rails at a lower level.

CVSS Base Scores

version 3.1