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Gentoo Linux Security Advisory GLSA 200806-09:02 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: libvorbis: Multiple vulnerabilities |
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Date: June 23, 2008 |
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Updated: June 23, 2008 |
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Bugs: #222085 |
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ID: 200806-09:02 |
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|
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in libvorbis might lead to the execution of |
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arbitrary code. |
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|
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Background |
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========== |
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|
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libvorbis is the reference implementation of the Xiph.org Ogg Vorbis |
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audio file format. It is used by many applications for playback of Ogg |
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Vorbis files. |
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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/libvorbis < 1.2.1_rc1 >= 1.2.1_rc1 |
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|
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Description |
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=========== |
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|
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Will Drewry of the Google Security Team reported multiple |
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vulnerabilities in libvorbis: |
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|
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* A zero value for "codebook.dim" is not properly handled, leading to |
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a crash, infinite loop or triggering an integer overflow |
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(CVE-2008-1419). |
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|
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* An integer overflow in "residue partition value" evaluation might |
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lead to a heap-based buffer overflow (CVE-2008-1420). |
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|
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* An integer overflow in a certain "quantvals" and "quantlist" |
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calculation might lead to a heap-based buffer overflow |
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(CVE-2008-1423). |
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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 exploit these vulnerabilities by enticing a |
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user to open a specially crafted Ogg Vorbis file or network stream with |
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an application using libvorbis. This might lead to the execution of |
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arbitrary code with the privileges of the user playing the file or a |
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Denial of Service by a crash or CPU consumption. |
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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 libvorbis users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot -v ">=media-libs/libvorbis-1.2.1_rc1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2008-1419 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1419 |
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[ 2 ] CVE-2008-1420 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1420 |
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[ 3 ] CVE-2008-1423 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1423 |
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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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http://security.gentoo.org/glsa/glsa-200806-09.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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http://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 2008 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 |