UBUNTU-CVE-2020-27507

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    UBUNTU-CVE-2020-27507

    Published: 15 Mar 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-27507
    Aliases:
    USN-6022-1

    Summary:

    Details: The Kamailio SIP before 5.5.0 server mishandles INVITE requests with duplicated fields and overlength tag, leading to a buffer overflow that crashes the server or possibly have unspecified other impact.

    References: https://ubuntu.com/security/CVE-2020-27507, https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685f, https://github.com/kamailio/kamailio/issues/2503, https://ubuntu.com/security/notices/USN-6022-1, https://www.cve.org/CVERecord?id=CVE-2020-27507

    Affected packages

    Package

    Name: kamailio

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.3.4-1.1ubuntu2.1+esm1

    Affected versions

    4.3.1-2ubuntu1
    4.3.4-1.1ubuntu1
    4.3.4-1.1ubuntu2
    4.3.4-1.1ubuntu2.1

    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-2020-27507 | CVE-DB