GHSA-242x-7cm6-4w8j

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    GHSA-242x-7cm6-4w8j

    Published: 24 May 2022Last Modified: 9 Jun 2026

    Summary: Nokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability

    Details: In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed. Nokogiri prior to version 1.10.5 contains a vulnerable version of libxslt. Nokogiri version 1.10.5 upgrades the dependency to libxslt 1.1.34, which contains a patch for this issue.

    References: https://nvd.nist.gov/vuln/detail/CVE-2019-18197, https://github.com/sparklemotion/nokogiri/issues/1943, https://access.redhat.com/errata/RHSA-2020:0514, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-18197.yml, https://github.com/sparklemotion/nokogiri, https://github.com/sparklemotion/nokogiri/blob/01ab95f3e37429ed8d3b380a8d2f73902eb325d9/CHANGELOG.md?plain=1#L934, https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285, https://lists.debian.org/debian-lts-announce/2019/10/msg00037.html, https://security.netapp.com/advisory/ntap-20191031-0004, https://security.netapp.com/advisory/ntap-20200416-0004, https://usn.ubuntu.com/4164-1, https://www.oracle.com/security-alerts/cpuapr2020.html, http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00010.html, http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html, http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html, http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html, http://www.openwall.com/lists/oss-security/2019/11/17/2

    Affected packages

    Package

    Name: nokogiri

    Purl: pkg:gem/nokogiri

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.10.5

    Affected versions

    1.0.0
    1.0.1
    1.0.2
    1.0.3
    1.0.4
    1.0.5
    1.0.6
    1.0.7

    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
    GHSA-242x-7cm6-4w8j | CVE-DB