CVE-2012-3863

    Dashboard / Vulnerabilities / CVE-2012-3863

    CVE-2012-3863

    Published: 9 Jul 2012Last Modified: 10 Apr 2026

    Summary:

    Details: channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.

    References: http://downloads.asterisk.org/pub/security/AST-2012-010.html, http://secunia.com/advisories/50687, http://secunia.com/advisories/50756, http://www.debian.org/security/2012/dsa-2550, http://downloads.asterisk.org/pub/security/AST-2012-010.html, http://www.securityfocus.com/bid/54327, https://issues.asterisk.org/jira/browse/ASTERISK-19992

    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