72 lines
2.5 KiB
XML
72 lines
2.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200703-03">
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<title>ClamAV: Denial of Service</title>
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<synopsis>
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ClamAV contains two vulnerabilities allowing a Denial of Service.
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</synopsis>
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<product type="ebuild">clamav</product>
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<announced>March 02, 2007</announced>
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<revised>March 02, 2007: 01</revised>
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<bug>167201</bug>
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<access>remote</access>
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<affected>
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<package name="app-antivirus/clamav" auto="yes" arch="*">
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<unaffected range="ge">0.90</unaffected>
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<vulnerable range="lt">0.90</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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ClamAV is a GPL virus scanner.
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</p>
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</background>
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<description>
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<p>
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An anonymous researcher discovered a file descriptor leak error in the
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processing of CAB archives and a lack of validation of the "id"
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parameter string used to create local files when parsing MIME headers.
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</p>
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</description>
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<impact type="normal">
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<p>
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A remote attacker can send several crafted CAB archives with a
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zero-length record header that will fill the available file descriptors
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until no other is available, which will prevent ClamAV from scanning
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most archives. An attacker can also send an email with specially
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crafted MIME headers to overwrite local files with the permissions of
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the user running ClamAV, such as the virus database file, which could
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prevent ClamAV from detecting any virus.
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</p>
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</impact>
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<workaround>
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<p>
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The first vulnerability can be prevented by refusing any file of type
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CAB, but there is no known workaround for the second issue.
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</p>
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</workaround>
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<resolution>
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<p>
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All ClamAV users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.90"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0897">CVE-2007-0897</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0898">CVE-2007-0898</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 26 Feb 2007 22:43:01 +0000">
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falco
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</metadata>
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<metadata tag="submitter" timestamp="Tue, 27 Feb 2007 13:49:10 +0000">
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falco
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</metadata>
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<metadata tag="bugReady" timestamp="Fri, 02 Mar 2007 00:24:54 +0000">
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falco
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</metadata>
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</glsa>
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