CVE-2011-4063

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    CVE-2011-4063

    Published: 21 Oct 2011Last Modified: 10 Apr 2026

    Summary:

    Details: chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.

    References: http://downloads.digium.com/pub/security/AST-2011-012.html, http://secunia.com/advisories/46420, http://securityreason.com/securityalert/8478, http://www.securityfocus.com/archive/1/520141/100/0/threaded, http://www.securityfocus.com/bid/50177, http://www.securitytracker.com/id?1026191, https://exchange.xforce.ibmcloud.com/vulnerabilities/70706

    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-2011-4063 | CVE-DB