Use After Free Affecting busybox package, versions <1:1.36.1-6ubuntu4


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU2504-BUSYBOX-9797157
  • published23 Apr 2025
  • disclosed27 Nov 2023

Introduced: 27 Nov 2023

CVE-2023-42365  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:25.04 busybox to version 1:1.36.1-6ubuntu4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Ubuntu. See How to fix? for Ubuntu:25.04 relevant fixed versions and status.

A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.

CVSS Base Scores

version 3.1