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Gentoo Linux Security Advisory GLSA 200608-13 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: ClamAV: Heap buffer overflow |
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Date: August 08, 2006 |
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Bugs: #143093 |
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ID: 200608-13 |
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Synopsis |
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======== |
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|
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ClamAV is vulnerable to a heap-based buffer overflow resulting in a |
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Denial of Service and potentially remote execution of arbitrary code. |
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Background |
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========== |
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ClamAV is a GPL virus scanner. |
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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 < 0.88.4 >= 0.88.4 |
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Description |
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=========== |
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|
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Damian Put has discovered a boundary error in the pefromupx() function |
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used by the UPX extraction module, which unpacks PE Windows executable |
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files. Both the "clamscan" command-line utility and the "clamd" daemon |
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are affected. |
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Impact |
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====== |
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By sending a malicious attachment to a mail server running ClamAV, a |
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remote attacker can cause a Denial of Service and potentially the |
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execution of arbitrary code with the permissions of the user running |
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ClamAV. |
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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 --verbose ">=app-antivirus/clamav-0.88.4" |
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References |
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========== |
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[ 1 ] ClamAV security advisory |
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http://www.clamav.net/security/0.88.4.html |
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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-200608-13.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 2006 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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http://creativecommons.org/licenses/by-sa/2.5 |
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