Out-of-bounds Write Affecting kernel-obs-build package, versions <4.12.14-150.72.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

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  • Snyk IDSNYK-SLES150-KERNELOBSBUILD-2685317
  • published14 Apr 2022
  • disclosed12 May 2021

Introduced: 12 May 2021

CVE-2021-27365  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-obs-build to version 4.12.14-150.72.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

CVSS Scores

version 3.1