Integer Overflow or Wraparound Affecting kernel-default-livepatch-devel package, versions <5.3.18-24.93.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES152-KERNELDEFAULTLIVEPATCHDEVEL-2655411
  • published14 Apr 2022
  • disclosed19 Nov 2021

Introduced: 19 Nov 2021

CVE-2021-41864  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-default-livepatch-devel to version 5.3.18-24.93.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-livepatch-devel package and not the kernel-default-livepatch-devel package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

CVSS Scores

version 3.1