Race Condition Affecting kernel-default-devel package, versions <5.3.18-150300.59.90.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES153-KERNELDEFAULTDEVEL-2989981
  • published24 Aug 2022
  • disclosed23 Aug 2022

Introduced: 23 Aug 2022

CVE-2022-1462  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-default-devel to version 5.3.18-150300.59.90.1 or higher.

NVD Description

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

An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.

CVSS Scores

version 3.1