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Gentoo Linux Security Advisory GLSA 200710-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: libvorbis: Multiple vulnerabilities |
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Date: October 07, 2007 |
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Bugs: #186716 |
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ID: 200710-03 |
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Synopsis |
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======== |
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|
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A buffer overflow vulnerability and several memory corruptions have |
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been discovered in libvorbis. |
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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 < 1.2.0 >= 1.2.0 |
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|
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Description |
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=========== |
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|
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David Thiel of iSEC Partners discovered a heap-based buffer overflow in |
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the _01inverse() function in res0.c and a boundary checking error in |
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the vorbis_info_clear() function in info.c (CVE-2007-3106 and |
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CVE-2007-4029). libvorbis is also prone to several Denial of Service |
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vulnerabilities in form of infinite loops and invalid memory access |
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with unknown impact (CVE-2007-4065 and CVE-2007-4066). |
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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 privileges of the user playing the file or a Denial |
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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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There is no known workaround at this time. |
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Resolution |
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========== |
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All libvorbis users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/libvorbis-1.2.0" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-3106 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3106 |
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[ 2 ] CVE-2007-4029 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4029 |
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[ 3 ] CVE-2007-4065 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4065 |
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[ 4 ] CVE-2007-4066 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4066 |
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|
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Availability |
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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-200710-03.xml |
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Concerns? |
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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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Copyright 2007 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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http://creativecommons.org/licenses/by-sa/2.5 |
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