CVE-2011-2535

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    CVE-2011-2535

    Published: 6 Jul 2011Last Modified: 10 Apr 2026

    Summary:

    Details: chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame.

    References: http://downloads.asterisk.org/pub/security/AST-2011-010.html, http://secunia.com/advisories/44973, 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-2011-010-1.8.diff, http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html, http://securitytracker.com/id?1025708, http://www.osvdb.org/73309, http://www.securityfocus.com/bid/48431, https://exchange.xforce.ibmcloud.com/vulnerabilities/68205

    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