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Bug 564426 (CVE-2015-8792) - <media-libs/libmatroska-1.4.4: Out-of-bounds heap read in KaxInternalBlock::ReadData() (CVE-2015-8792)
Summary: <media-libs/libmatroska-1.4.4: Out-of-bounds heap read in KaxInternalBlock::R...
Status: RESOLVED FIXED
Alias: CVE-2015-8792
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard: B3 [noglsa cve]
Keywords:
Depends on:
Blocks:
 
Reported: 2015-10-29 14:35 UTC by Agostino Sarubbo
Modified: 2016-06-30 09:23 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

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Description Agostino Sarubbo gentoo-dev 2015-10-29 14:35:44 UTC 
From ${URL} :

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


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
Comment 1 Alexis Ballier gentoo-dev 2015-10-29 21:09:19 UTC 
already fixed in 1.4.4 I think, which is good to go stable
Comment 2 Agostino Sarubbo gentoo-dev 2015-10-30 08:41:50 UTC 
Arches, please test and mark stable:
=media-libs/libmatroska-1.4.4
Target keywords : "alpha amd64 arm ia64 ppc ppc64 sparc x86"
Comment 3 Agostino Sarubbo gentoo-dev 2015-10-30 08:45:15 UTC 
amd64 stable
Comment 4 Agostino Sarubbo gentoo-dev 2015-10-30 08:45:54 UTC 
x86 stable
Comment 5 Jeroen Roovers (RETIRED) gentoo-dev 2015-10-31 06:34:36 UTC 
Stable for PPC64.
Comment 6 Tobias Klausmann (RETIRED) gentoo-dev 2015-11-01 14:51:51 UTC 
Stable on alpha.
Comment 7 Agostino Sarubbo gentoo-dev 2015-11-04 14:50:54 UTC 
ppc stable
Comment 8 Agostino Sarubbo gentoo-dev 2015-11-05 11:01:57 UTC 
sparc stable
Comment 9 Markus Meier gentoo-dev 2015-11-15 20:59:41 UTC 
arm stable
Comment 10 Agostino Sarubbo gentoo-dev 2015-11-18 09:34:08 UTC 
ia64 stable.

Maintainer(s), please cleanup.
Security, please vote.
Comment 11 Yury German Gentoo Infrastructure gentoo-dev 2015-12-23 23:30:55 UTC 
Arches, Thank you for your work.
GLSA Vote: No

Maintainer(s), please drop the vulnerable version(s).
Comment 12 Yury German Gentoo Infrastructure gentoo-dev 2016-02-25 08:33:11 UTC 
Maintainer(s), please drop the vulnerable version(s).
Comment 13 Yury German Gentoo Infrastructure gentoo-dev 2016-04-28 05:11:24 UTC 
Maintainer(s), please drop the vulnerable version(s).
Comment 14 GLSAMaker/CVETool Bot gentoo-dev 2016-06-30 09:16:21 UTC 
CVE-2015-8792 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8792):
  The KaxInternalBlock::ReadData function in libMatroska before 1.4.4 allows
  context-dependent attackers to obtain sensitive information from process
  heap memory via crafted EBML lacing, which triggers an invalid memory
  access.
Comment 15 Aaron Bauman (RETIRED) gentoo-dev 2016-06-30 09:23:42 UTC 
Maintainer timeout.. cleanup complete:

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=14735d715a5a582e2723a810c371281e8dd085ff