Use After Free Affecting kernel-default-man package, versions <4.12.14-150.66.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (24th percentile)

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  • Snyk IDSNYK-SLES150-KERNELDEFAULTMAN-2692384
  • published14 Apr 2022
  • disclosed11 Feb 2021

Introduced: 11 Feb 2021

CVE-2020-25669  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-default-man to version 4.12.14-150.66.1 or higher.

NVD Description

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

A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.

CVSS Scores

version 3.1