Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2023-42365

Published: 27 November 2023

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

Notes

AuthorNote
eslerm
CVE-2023-42364 and CVE-2023-42365 share a patch, see both bugs
upstream's patch contains a regression
alpine has a patch for the regression upstream introduced

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
busybox
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

jammy Needed

lunar Ignored
(end of life, was deferred [2024-06-17])
mantic Ignored
(end of life, was deferred [2024-06-17])
noble Needed

trusty Needed

upstream Needs triage

xenial Needed

Patches:
upstream: https://git.busybox.net/busybox/commit/editors/awk.c?id=0256e00a9d077588bd3a39f5a1ef7e2eaa2911e4

Severity score breakdown

Parameter Value
Base score 5.5
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