Integer Underflow Affecting kernel-source package, versions <5.3.18-24.99.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.27% (69th percentile)

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  • Snyk IDSNYK-SLES152-KERNELSOURCE-2661262
  • published14 Apr 2022
  • disclosed26 Jan 2022

Introduced: 26 Jan 2022

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

How to fix?

Upgrade SLES:15.2 kernel-source to version 5.3.18-24.99.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source package as distributed by SLES. See How to fix? for SLES:15.2 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.

CVSS Scores

version 3.1