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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abhgupta, deekej, kseifried, pzhukov, tiwillia, twaugh, zdohnal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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:
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:


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

Name: Dai Ge (Chinese Academy of Sciences)

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

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

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.