CVE-2011-2529

    Dashboard / Vulnerabilities / CVE-2011-2529

    CVE-2011-2529

    Published: 6 Jul 2011Last Modified: 10 Apr 2026

    Summary:

    Details: chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.

    References: http://downloads.asterisk.org/pub/security/AST-2011-008.html, http://secunia.com/advisories/45048, http://secunia.com/advisories/45201, http://secunia.com/advisories/45239, http://www.debian.org/security/2011/dsa-2276, http://downloads.asterisk.org/pub/security/AST-2011-008.diff, http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html, http://securitytracker.com/id?1025706, http://www.osvdb.org/73307, http://www.securityfocus.com/bid/48431, https://exchange.xforce.ibmcloud.com/vulnerabilities/68203

    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-2011-2529 | CVE-DB