Use After Free Affecting linux-5.10 package, versions <5.10.209-2~deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.38% (73rd percentile)

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  • Snyk IDSNYK-DEBIAN10-LINUX510-7371024
  • published26 Jun 2024
  • disclosed9 Nov 2023

Introduced: 9 Nov 2023

CVE-2023-39198  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.209-2~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

CVSS Scores

version 3.1