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Gentoo Linux Security Advisory GLSA 200404-07 |
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http://security.gentoo.org |
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Severity: Normal |
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Title: ClamAV RAR Archive Remote Denial Of Service Vulnerability |
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Date: April 07, 2004 |
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Bugs: #45357 |
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ID: 200404-07 |
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Synopsis |
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======== |
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|
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ClamAV is vulnerable to a denial of service attack when processing |
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certain RAR archives. |
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Background |
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========== |
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From http://www.clamav.net/ : |
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"Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose |
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of this software is the integration with mail servers (attachment |
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scanning). The package provides a flexible and scalable multi-threaded |
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daemon, a command line scanner, and a tool for automatic updating via |
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Internet. The programs are based on a shared library distributed with |
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the Clam AntiVirus package, which you can use with your own software. |
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Most importantly, the virus database is kept up to date." |
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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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net-mail/clamav <= 0.68 >= 0.68.1 |
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Description |
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=========== |
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|
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Certain types of RAR archives, including those created by variants of |
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the W32.Beagle.A@mm worm, may cause clamav to crash when it attempts to |
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process them. |
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Impact |
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====== |
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This vulnerability causes a Denial of Service in the clamav process. |
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Depending on configuration, this may cause dependent services such as |
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mail to fail as well. |
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Workaround |
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========== |
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A workaround is not currently known for this issue. All users are |
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advised to upgrade to the latest version of the affected package. |
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Resolution |
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========== |
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ClamAV users should upgrade to version 0.68.1 or later: |
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# emerge sync |
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# emerge -pv ">=net-mail/clamav-0.68.1" |
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# emerge ">=net-mail/clamav-0.68.1" |
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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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