CVE-2017-18342

    Dashboard / Vulnerabilities / CVE-2017-18342

    CVE-2017-18342

    Published: 27 Jun 2018Last Modified: 8 Jul 2026

    Summary:

    Details: In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.

    References: https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/, https://github.com/marshmallow-code/apispec/issues/278, https://github.com/yaml/pyyaml/blob/master/CHANGES, https://github.com/yaml/pyyaml/issues/193, https://security.gentoo.org/glsa/202003-45, https://github.com/yaml/pyyaml/pull/74

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e471e86bf6dabdad45a1438c20a4a5c033eb9034

    Affected versions

    3.12

    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