Bug 1670982 (CVE-2019-6988)

Summary:	CVE-2019-6988 openjpeg: DoS via memory exhaustion in opj_decompress
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	nforro
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-02-01 05:33:03 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:	1670983
Bug Blocks:	1670984

Description Dhananjay Arunesh 2019-01-30 13:06:12 UTC

An issue was discovered in OpenJPEG 2.3.0. It allows remote attackers to cause a
denial of service (attempted excessive memory allocation) in opj_calloc in
openjp2/opj_malloc.c, when called from opj_tcd_init_tile in openjp2/tcd.c, as
demonstrated by the 64-bit opj_decompress.

References:

https://github.com/uclouvain/openjpeg/issues/1178

Comment 1 Dhananjay Arunesh 2019-01-30 13:06:22 UTC

Created openjpeg tracking bugs for this issue:

Affects: fedora-all [bug 1670983]

Comment 2 Huzaifa S. Sidhpurwala 2019-01-31 04:56:20 UTC

Analysis:

This is essentially a memory exhaustion flaw in the way, the decompressor allocates memory, caused by specially-crafted JPEG2000 file headers. The only impact of this flaw is machine hang, depending on the amount of memory available on the system.