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Gentoo Linux Security Advisory GLSA 200712-20 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: ClamAV: Multiple vulnerabilities |
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Date: December 29, 2007 |
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Bugs: #202762 |
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ID: 200712-20 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been discovered in ClamAV allowing remote |
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execution of arbitrary code and Denial of Service attacks. |
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Background |
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========== |
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|
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Clam AntiVirus is a free anti-virus toolkit for UNIX, designed |
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especially for e-mail scanning on mail gateways. |
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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 app-antivirus/clamav < 0.91.2-r1 >= 0.91.2-r1 |
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Description |
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=========== |
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|
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iDefense reported an integer overflow vulnerability in the cli_scanpe() |
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function when parsing Portable Executable (PE) files packed in the MEW |
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format, that could be exploited to cause a heap-based buffer overflow |
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(CVE-2007-6335). Toeroek Edwin reported an off-by-one error when |
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decompressing MS-ZIP compressed CAB files (CVE-2007-6336). An |
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unspecified vulnerability related to the bzip2 decompression algorithm |
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has also been discovered (CVE-2007-6337). |
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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 or automated system to scan a |
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specially crafted file, possibly leading to the execution of arbitrary |
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code with the privileges of the user running ClamAV (either a system |
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user or the "clamav" user if clamd is compromised). |
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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 ClamAV users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot -v ">=app-antivirus/clamav-0.91.2-r1" |
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References |
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========== |
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[ 1 ] CVE-2007-6335 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6335 |
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[ 2 ] CVE-2007-6336 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6336 |
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[ 3 ] CVE-2007-6337 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6337 |
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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-200712-20.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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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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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 |
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