Bug 1658791 (CVE-2018-19542)

Summary:	CVE-2018-19542 jasper: invalid access in jp2_decode in libjasper/jp2/jp2_dec.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, dbaker, jokerman, jridky, rh-spice-bugs, sthangav, trankin
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in Jasper due to a NULL pointer dereference in the jp2_decode function within libjasper/jp2/jp2_dec.c, where an attacker could exploit this flaw by persuading a victim to open a specially crafted file, causing the application to crash and resulting in a denial of service condition.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-27 03:21:58 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:	1658792, 1658793, 1658794, 1660966, 1660971, 1660976
Bug Blocks:	1658799

Description Laura Pardo 2018-12-12 20:50:49 UTC

An issue was discovered in JasPer 2.0.14. There is a NULL pointer dereference in the function jp2_decode in libjasper/jp2/jp2_dec.c, leading to a denial of service. 


References:
https://github.com/mdadams/jasper/issues/182

Comment 1 Laura Pardo 2018-12-12 20:51:14 UTC

Created jasper tracking bugs for this issue:

Affects: fedora-all [bug 1658792]


Created mingw-jasper tracking bugs for this issue:

Affects: epel-7 [bug 1658794]
Affects: fedora-all [bug 1658793]

Comment 2 Stefan Cornelius 2018-12-19 16:59:06 UTC

Not really a NULL ptr deref, but it can end up using garbage memory and the outcome can look like it is