CVE-2018-19837

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    CVE-2018-19837

    Published: 4 Dec 2018Last Modified: 8 Jul 2026

    Summary:

    Details: In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.

    References: http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html, http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html, http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html, https://github.com/sass/libsass/issues/2659, https://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5f

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -39e30874b9a5dd6a802c20e8b0470ba44eeba929

    Affected versions

    3.5.4
    3.5.3
    3.5.2
    3.5.1
    3.5.0
    3.5.0.beta.3
    3.5.0.beta.2
    3.5.0.beta.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