CVE-2011-1147

    Dashboard / Vulnerabilities / CVE-2011-1147

    CVE-2011-1147

    Published: 15 Mar 2011Last Modified: 10 Apr 2026

    Summary:

    Details: Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.

    References: http://downloads.asterisk.org/pub/security/AST-2011-002.html, http://secunia.com/advisories/43429, http://secunia.com/advisories/43702, http://www.debian.org/security/2011/dsa-2225, http://www.vupen.com/english/advisories/2011/0635, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055634.html, http://www.openwall.com/lists/oss-security/2011/03/11/2, http://www.openwall.com/lists/oss-security/2011/03/11/8, http://www.securityfocus.com/bid/46474, http://www.securitytracker.com/id?1025101

    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