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CVE-2023-42364

Publication date 27 November 2023

Last updated 14 August 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.

Read the notes from the security team

Status

Package Ubuntu Release Status
busybox 24.04 LTS noble
Fixed 1:1.36.1-6ubuntu3.1
23.10 mantic Ignored
23.04 lunar Ignored
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

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

mdeslaur

looks like the third patch below fixes the regression

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
busybox

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