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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 24.10 oracular
Fixed 1:1.36.1-6ubuntu4
24.04 LTS noble
Fixed 1:1.36.1-6ubuntu3.1
23.10 mantic Ignored end of life, was deferred [2024-06-17]
23.04 lunar Ignored end of life, was deferred [2024-06-17]
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