CVE-2013-5642

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    CVE-2013-5642

    Published: 9 Sept 2013Last Modified: 16 Apr 2026

    Summary:

    Details: The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.

    References: http://downloads.asterisk.org/pub/security/AST-2013-005.html, http://secunia.com/advisories/54534, http://secunia.com/advisories/54617, http://www.debian.org/security/2013/dsa-2749, http://www.mandriva.com/security/advisories?name=MDVSA-2013:223, http://downloads.asterisk.org/pub/security/AST-2013-005.html, http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html, http://osvdb.org/96690, http://www.securityfocus.com/bid/62022, http://www.securitytracker.com/id/1028957, https://issues.asterisk.org/jira/browse/ASTERISK-22007

    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
    CVE-2013-5642 | CVE-DB