Race Condition Affecting kernel-rt package, versions <0:5.14.0-70.93.1.rt21.165.el9_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL9-KERNELRT-6438913
  • published14 Mar 2024
  • disclosed21 Dec 2023

Introduced: 21 Dec 2023

CVE-2023-6546  (opens in a new tab)
CWE-362  (opens in a new tab)
CWE-416  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:9 kernel-rt to version 0:5.14.0-70.93.1.rt21.165.el9_0 or higher.
This issue was patched in RHSA-2024:1306.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

CVSS Scores

version 3.1