Out-of-bounds Read Affecting kernel-default-base package, versions <5.3.18-24.83.2.9.38.3


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-SLES152-KERNELDEFAULTBASE-2665209
  • published14 Apr 2022
  • disclosed23 Sept 2021

Introduced: 23 Sep 2021

CVE-2021-3753  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-default-base to version 5.3.18-24.83.2.9.38.3 or higher.

NVD Description

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

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.

CVSS Scores

version 3.1