Bug 1389338 (CVE-2016-9085) - CVE-2016-9085 libwebp: Several integer overflows
Summary: CVE-2016-9085 libwebp: Several integer overflows
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2016-9085
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Red Hat1389339 1389340 1389341 1389343 1389345 Red Hat1857003
Blocks: Embargoed1856607
TreeView+ depends on / blocked
 
Reported: 2016-10-27 13:18 UTC by Adam Mariš
Modified: 2021-02-04 20:01 UTC (History)
14 users (show)

Fixed In Version: libwebp 0.5.2
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Environment:
Last Closed: 2020-07-15 01:27:36 UTC

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Description Adam Mariš 2016-10-27 13:18:08 UTC 
Multiple integer overflows were found in libwebp library.

Upstream patch:

https://chromium.googlesource.com/webm/libwebp/+/e2affacc35f1df6cc3b1a9fa0ceff5ce2d0cce83

CVE assignment:

http://seclists.org/oss-sec/2016/q4/253
Comment 2 Adam Mariš 2016-10-27 13:19:24 UTC 
Created libwebp tracking bugs for this issue:

Affects: fedora-all [bug 1389340]
Affects: epel-6 [bug 1389343]
Comment 3 Adam Mariš 2016-10-27 13:19:34 UTC 
Created mingw-libwebp tracking bugs for this issue:

Affects: fedora-all [bug 1389341]
Affects: epel-6 [bug 1389345]
Comment 4 Todd Cullum 2020-07-14 22:27:56 UTC 
Flaw Summary:
libwebp includes an example program called gifdec.c which uses pointer arithmetic computations with integers. The affected routines are GIFReadFrame(), ClearRectangle(), and GIFBlendFrames(). The upstream patch uses wider size_t containers instead of integers in the calculations and also uses pointer increments in an attempt to avoid these integer overflows.

Versions of libwebp shipped with Red Hat Enterprise Linux 8 are affected but versions of libwebp shipped with all previous versions of Red Hat Enterprise Linux are not affected since the vulnerable code does not exist in those versions.
Comment 7 Todd Cullum 2020-07-14 22:41:26 UTC 
Correction: the 1.0.0 version of libwebp shipped with Red Hat Enterprise Linux 8 is NOT affected as it includes the patch for this already.
Comment 8 Product Security DevOps Team 2020-07-15 01:27:36 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2016-9085
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