Double Free Affecting kernel-docs package, versions <5.3.18-24.96.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.13% (50th 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 Learn

Learn about Double Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-SLES152-KERNELDOCS-2653132
  • published14 Apr 2022
  • disclosed6 Dec 2021

Introduced: 6 Dec 2021

CVE-2021-37159  (opens in a new tab)
CWE-415  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-docs to version 5.3.18-24.96.1 or higher.

NVD Description

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

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.

CVSS Scores

version 3.1