UBUNTU-CVE-2018-17281

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    UBUNTU-CVE-2018-17281

    Published: 24 Sept 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-17281

    Summary:

    Details: There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.

    References: https://ubuntu.com/security/CVE-2018-17281, https://downloads.asterisk.org/pub/security/AST-2018-009.html, https://issues.asterisk.org/jira/browse/ASTERISK-28013, http://downloads.asterisk.org/pub/security/AST-2018-009.html, http://packetstormsecurity.com/files/149453/Asterisk-Project-Security-Advisory-AST-2018-009.html, http://seclists.org/fulldisclosure/2018/Sep/31, http://www.securitytracker.com/id/1041694, https://seclists.org/bugtraq/2018/Sep/53, https://www.cve.org/CVERecord?id=CVE-2018-17281

    Affected packages

    Package

    Name: asterisk

    Purl: pkg:deb/ubuntu/asterisk@1:13.1.0~dfsg-1.1ubuntu4.1+esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1:13.1.0~dfsg-1.1ubuntu3
    1:13.1.0~dfsg-1.1ubuntu4
    1:13.1.0~dfsg-1.1ubuntu4.1
    1:13.1.0~dfsg-1.1ubuntu4.1+esm1

    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