Integer Underflow Affecting kernel-source-rt package, versions <5.3.18-150300.71.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
1% (84th percentile)

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  • Snyk IDSNYK-SLES153-KERNELSOURCERT-2645290
  • published14 Apr 2022
  • disclosed2 Feb 2022

Introduced: 2 Feb 2022

CVE-2022-0185  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-source-rt to version 5.3.18-150300.71.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source-rt package and not the kernel-source-rt package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

References

CVSS Scores

version 3.1