Bug 1276335 (CVE-2015-8792) - CVE-2015-8792 libmatroska: Out-of-bounds heap read in KaxInternalBlock::ReadData()
Summary: CVE-2015-8792 libmatroska: Out-of-bounds heap read in KaxInternalBlock::ReadD...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2015-8792
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: 1276338 1276339
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-10-29 13:36 UTC by Adam Mariš
Modified: 2019-09-29 13:39 UTC (History)
5 users (show)

Fixed In Version: libmatroska 1.4.4
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 02:44:53 UTC
Embargoed:

Attachments (Terms of Use)

Description Adam Mariš 2015-10-29 13:36:29 UTC 
KaxInternalBlock::ReadData(): Fixed an invalid memory access. When reading a block group or a simple block that uses EBML lacing the frame sizes indicated in the lacing weren't checked against the available number of bytes. If the indicated frame size was bigger than the whole block's size the parser would read beyond the end of the buffer resulting in a heap information leak.

Upstream patch:

https://github.com/Matroska-Org/libmatroska/commit/0a2d3e3644a7453b6513db2f9bc270f77943573f
Comment 1 Adam Mariš 2015-10-29 13:39:06 UTC 
Created libmatroska tracking bugs for this issue:

Affects: fedora-all [bug 1276338]
Affects: epel-all [bug 1276339]
Comment 2 Andrej Nemec 2016-02-01 08:42:34 UTC 
Added CVE according to http://www.cvedetails.com/cve/CVE-2015-8792
Comment 3 Product Security DevOps Team 2019-06-08 02:44:53 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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