UBUNTU-CVE-2018-11386

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    UBUNTU-CVE-2018-11386

    Published: 13 Jun 2018Last Modified: 16 Jul 2025
    Upstream:
    CVE-2018-11386

    Summary:

    Details: An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.

    References: https://ubuntu.com/security/CVE-2018-11386, https://symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandler, https://lists.fedoraproject.org/archives/list/[email protected]/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/, https://lists.fedoraproject.org/archives/list/[email protected]/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/, https://lists.fedoraproject.org/archives/list/[email protected]/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/, https://www.cve.org/CVERecord?id=CVE-2018-11386

    Affected packages

    Package

    Name: symfony

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-1ubuntu0.1?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.4.6+dfsg-1ubuntu0.1

    Affected versions

    2.8.7+dfsg-1.3ubuntu1

    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