CVE-2013-2020

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    CVE-2013-2020

    Published: 13 May 2013Last Modified: 10 Apr 2026

    Summary:

    Details: Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.

    References: http://secunia.com/advisories/53150, http://secunia.com/advisories/53182, http://www.mandriva.com/security/advisories?name=MDVSA-2013:159, http://www.ubuntu.com/usn/USN-1816-1, http://blog.clamav.net/2013/04/clamav-0978-has-been-released.html, https://github.com/vrtadmin/clamav-devel/commit/270e368b99e93aa5447d46c797c92c3f9f39f375, https://bugzilla.clamav.net/show_bug.cgi?id=7055, http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html, http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html, http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html, http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html, http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109652.html, http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105575.html, http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00006.html, http://lists.opensuse.org/opensuse-updates/2013-06/msg00018.html, http://lists.opensuse.org/opensuse-updates/2013-06/msg00020.html, http://support.apple.com/kb/HT5880, http://support.apple.com/kb/HT5892, http://www.openwall.com/lists/oss-security/2013/04/25/2, http://www.openwall.com/lists/oss-security/2013/04/29/20, http://www.securityfocus.com/bid/59434

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High