Bug 1444104 (CVE-2017-7885)

Summary:	CVE-2017-7885 jbig2dec: Integer overflow in jbig2_decode_symbol_dict
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, deekej, kseifried, pzhukov, tiwillia, twaugh, zdohnal
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:	2017-07-21 10:32:40 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:	1443898, 1443899, 1443933, 1443934
Bug Blocks:	1443943

Description Andrej Nemec 2017-04-20 15:05:28 UTC

jbig2dec has a heap-based buffer over-read leading to denial of service (application crash) because of an integer overflow in the jbig2_decode_symbol_dict function in jbig2_symbol_dict.c in libjbig2dec.a during operation on a crafted .jb2 file.

Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=697703

Comment 1 Andrej Nemec 2017-04-20 15:09:49 UTC

Created jbig2dec tracking bugs for this issue:

Affects: epel-all [bug 1443899]

Comment 3 Cedric Buissart 2017-07-20 15:48:35 UTC

Acknowledgments:

Name: Dai Ge (Chinese Academy of Sciences)

Comment 5 Cedric Buissart 2017-07-21 09:35:32 UTC

Upstream fix :
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=b184e783702246e15

Comment 6 Cedric Buissart 2017-07-21 10:31:05 UTC

Statement:

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification.