CVE-2023-42366

Publication date 27 November 2023

Last updated 16 February 2026


Ubuntu priority

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.

Read the notes from the security team

Status

Package Ubuntu Release Status
busybox 25.10 questing
Vulnerable
25.04 plucky Ignored end of life, was deferred [2026-02-16]
24.10 oracular Ignored end of life, was deferred [2026-02-16]
24.04 LTS noble
Vulnerable
23.10 mantic Ignored end of life, was deferred [2024-09-19]
23.04 lunar Ignored end of life, was deferred [2024-09-19]
22.04 LTS jammy
Vulnerable
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty
Vulnerable

Notes


mdeslaur

as of 2026-02-16, there is no fix from upstream for this issue but Debian has added proposed fixes to 1:1.37.0-10

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H