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Gentoo Linux Security Advisory GLSA 201101-03 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: libvpx: User-assisted execution of arbitrary code |
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Date: January 15, 2011 |
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Bugs: #345559 |
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ID: 201101-03 |
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|
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Synopsis |
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======== |
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|
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Timothy B. Terriberry discovered that libvpx contains an integer |
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overflow vulnerability in the processing of video streams that may |
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allow user-assisted execution of arbitrary code. |
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|
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Background |
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========== |
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|
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libvpx is the VP8 codec SDK used to encode and decode video streams, |
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typically within a WebM format media file. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 media-libs/libvpx < 0.9.5 >= 0.9.5 |
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|
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Description |
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=========== |
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|
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libvpx is vulnerable to an integer overflow vulnerability when |
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processing crafted VP8 video streams. |
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|
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Impact |
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====== |
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|
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A remote attacker could entice a user to open a specially crafted media |
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file, possibly resulting in the execution of arbitrary code with the |
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privileges of the user running the application, or a Denial of Service. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All libvpx users should upgrade to the latest stable version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libvpx-0.9.5" |
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|
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Packages which depend on this library may need to be recompiled. Tools |
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such as revdep-rebuild may assist in identifying some of these |
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packages. |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2010-4203 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4203 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-201101-03.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2011 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |