CVE-2009-2651

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    CVE-2009-2651

    Published: 30 Jul 2009Last Modified: 10 Apr 2026

    Summary:

    Details: main/rtp.c in Asterisk Open Source 1.6.1 before 1.6.1.2 allows remote attackers to cause a denial of service (crash) via an RTP text frame without a certain delimiter, which triggers a NULL pointer dereference and the subsequent calculation of an invalid pointer.

    References: http://downloads.asterisk.org/pub/security/AST-2009-004.html, http://secunia.com/advisories/36039, http://www.vupen.com/english/advisories/2009/2067, http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt, http://www.vupen.com/english/advisories/2009/2067, http://osvdb.org/56571, http://www.securityfocus.com/bid/35837, http://www.securitytracker.com/id?1022608, https://exchange.xforce.ibmcloud.com/vulnerabilities/52046

    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