Bug 1977427 (CVE-2021-3630)

Summary:	CVE-2021-3630 djvulibre: out-of-bounds write in DJVU::DjVuTXT::decode() in DjVuText.cpp
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	manisandro, mkasik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	DjVuLibre 3.5.28	Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-29 22:40:34 UTC	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:	1977428, 1977429, 1977430
Bug Blocks:	1977431

Description Guilherme de Almeida Suckevicz 2021-06-29 17:56:05 UTC

An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.

Reference:
https://sourceforge.net/p/djvu/bugs/302/

Upstream patch:
https://sourceforge.net/p/djvu/djvulibre-git/ci/7b0ef20690e08f1fe124aebbf42f6310e2f40f81/

Comment 1 Guilherme de Almeida Suckevicz 2021-06-29 17:56:29 UTC

Created djvulibre tracking bugs for this issue:

Affects: epel-7 [bug 1977430]
Affects: fedora-all [bug 1977428]


Created mingw-djvulibre tracking bugs for this issue:

Affects: fedora-all [bug 1977429]

Comment 2 Product Security DevOps Team 2021-06-29 22:40:34 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.