85 lines
3.2 KiB
XML
85 lines
3.2 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="200706-05">
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<title>ClamAV: Multiple Denials of Service</title>
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<synopsis>
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ClamAV contains several vulnerabilities leading to a Denial of Service.
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</synopsis>
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<product type="ebuild">clamav</product>
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<announced>June 15, 2007</announced>
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<revised>June 15, 2007: 01</revised>
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<bug>178082</bug>
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<access>remote, local</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">0.90.3</unaffected>
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<vulnerable range="lt">0.90.3</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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Several vulnerabilities were discovered in ClamAV by various
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researchers:
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</p>
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<ul><li>Victor Stinner (INL) discovered that the OLE2
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parser may enter in an infinite loop (CVE-2007-2650).</li>
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<li>A
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boundary error was also reported by an anonymous researcher in the file
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unsp.c, which might lead to a buffer overflow (CVE-2007-3023).</li>
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<li>The file unrar.c contains a heap-based buffer overflow via a
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modified vm_codesize value from a RAR file (CVE-2007-3123).</li>
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<li>The RAR parsing engine can be bypassed via a RAR file with a header
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flag value of 10 (CVE-2007-3122).</li>
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<li>The cli_gentempstream()
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function from clamdscan creates temporary files with insecure
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permissions (CVE-2007-3024).</li>
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</ul>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could send a specially crafted file to the scanner,
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possibly triggering one of the vulnerabilities. The two buffer
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overflows are reported to only cause Denial of Service. This would lead
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to a Denial of Service by CPU consumption or a crash of the scanner.
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The insecure temporary file creation vulnerability could be used by a
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local user to access sensitive data.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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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-0.90.3"</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-2007-2650">CVE-2007-2650</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3023">CVE-2007-3023</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3024">CVE-2007-3024</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3122">CVE-2007-3122</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3123">CVE-2007-3123</uri>
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</references>
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<metadata tag="requester" timestamp="Fri, 08 Jun 2007 06:17:07 +0000">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="Sun, 10 Jun 2007 18:13:18 +0000">
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falco
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</metadata>
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<metadata tag="bugReady" timestamp="Sun, 10 Jun 2007 18:15:09 +0000">
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falco
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</metadata>
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</glsa>
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