CVE-2011-1175

    Dashboard / Vulnerabilities / CVE-2011-1175

    CVE-2011-1175

    Published: 31 Mar 2011Last Modified: 10 Apr 2026

    Summary:

    Details: tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by establishing many short TCP sessions to services that use a certain TLS API.

    References: http://downloads.asterisk.org/pub/security/AST-2011-004.html, http://www.debian.org/security/2011/dsa-2225, http://www.vupen.com/english/advisories/2011/0686, http://www.vupen.com/english/advisories/2011/0790, http://downloads.asterisk.org/pub/security/AST-2011-004.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html, http://openwall.com/lists/oss-security/2011/03/21/12, https://bugzilla.redhat.com/show_bug.cgi?id=688678, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html, http://openwall.com/lists/oss-security/2011/03/17/5, http://securitytracker.com/id?1025224, http://www.securityfocus.com/bid/46898, https://exchange.xforce.ibmcloud.com/vulnerabilities/66140

    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