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Gentoo Linux Security Advisory GLSA 200909-04 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Clam AntiVirus: Multiple vulnerabilities |
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Date: September 09, 2009 |
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Bugs: #264834, #265545 |
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ID: 200909-04 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in ClamAV allow for the remote execution of |
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arbitrary code or Denial of Service. |
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|
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Background |
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========== |
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|
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Clam AntiVirus (short: ClamAV) is an anti-virus toolkit for UNIX, |
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designed 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 < 0.95.2 >= 0.95.2 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities have been found in ClamAV: |
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|
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* The vendor reported a Divide-by-zero error in the PE ("Portable |
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Executable"; Windows .exe) file handling of ClamAV (CVE-2008-6680). |
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|
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* Jeffrey Thomas Peckham found a flaw in libclamav/untar.c, possibly |
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resulting in an infinite loop when processing TAR archives in clamd |
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and clamscan (CVE-2009-1270). |
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|
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* Martin Olsen reported a vulnerability in the CLI_ISCONTAINED macro |
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in libclamav/others.h, when processing UPack archives |
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(CVE-2009-1371). |
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|
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* Nigel disclosed a stack-based buffer overflow in the |
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"cli_url_canon()" function in libclamav/phishcheck.c when processing |
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URLs (CVE-2009-1372). |
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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 process a |
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specially crafted UPack archive or a file containing a specially |
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crafted URL, possibly resulting in the remote execution of arbitrary |
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code with the privileges of the user running the application, or a |
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Denial of Service. Furthermore, a remote attacker could cause a Denial |
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of Service by supplying a specially crafted TAR archive or PE |
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executable to a Clam AntiVirus instance. |
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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 Clam AntiVirus users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose =app-antivirus/clamav-0.95.2 |
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|
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References |
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========== |
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[ 1 ] CVE-2008-6680 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-6680 |
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[ 2 ] CVE-2009-1270 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1270 |
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[ 3 ] CVE-2009-1371 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1371 |
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[ 4 ] CVE-2009-1372 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1372 |
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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-200909-04.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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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2009 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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