Bug 2023876 (CVE-2021-42373)

Summary:	CVE-2021-42373 busybox: NULL pointer dereference in man applet leads to denial of service when a section name is supplied but no page argument is given
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	admiller, caswilli, dfreiber, drow, dvlasenk, huntemall.dev, jburrell, kaycoth, security-response-team, sidakwo, spotrh, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	BusyBox 1.34.0	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in BusyBox where it did not properly sanitize certain page arguments, leading to a denial of service. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2023877
Bug Blocks:	2023944

Description Guilherme de Almeida Suckevicz 2021-11-16 17:55:07 UTC

A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given.

Reference:
https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/

Comment 1 Guilherme de Almeida Suckevicz 2021-11-16 17:55:24 UTC

Created busybox tracking bugs for this issue:

Affects: fedora-all [bug 2023877]

Comment 6 huntemall.dev@ 2023-09-07 03:22:52 UTC

This bug has new version update for 2023. As tested in the wild. 
Last 2monthsback Red Hat Bugzilla  2023-07-07 08:28:14 UTC
Assignee: security-response-team → nobody