UBUNTU-CVE-2017-16671

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    UBUNTU-CVE-2017-16671

    Published: 9 Nov 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-16671
    Aliases:
    USN-4814-1

    Summary:

    Details: A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.

    References: https://ubuntu.com/security/CVE-2017-16671, http://downloads.digium.com/pub/security/AST-2017-010.html, http://downloads.asterisk.org/pub/security/AST-2017-010-13.diff, https://issues.asterisk.org/jira/browse/ASTERISK-27337, https://www.cve.org/CVERecord?id=CVE-2017-16671, https://ubuntu.com/security/notices/USN-4814-1

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

    Affected versions

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

    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
    UBUNTU-CVE-2017-16671 | CVE-DB