{"id":"CVE-2019-18197","aliases":["GHSA-242x-7cm6-4w8j"],"url":"https://o3.security/vulnerability/CVE-2019-18197","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.\n\nNokogiri 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.","published":"2019-10-18T21:15:10.793Z","modified":"2026-04-16T04:38:02.023846593Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.04362,"percentile":0.90544,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"nokogiri","fixedVersion":"1.10.5"}],"fix":null,"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00010.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2020.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20191031-0004/"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2019/11/17/2"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0514"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00037.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200416-0004/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4164-1/"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914"},{"type":"FIX","url":"https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18197"},{"type":"WEB","url":"https://github.com/sparklemotion/nokogiri/issues/1943"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-18197.yml"},{"type":"PACKAGE","url":"https://github.com/sparklemotion/nokogiri"},{"type":"WEB","url":"https://github.com/sparklemotion/nokogiri/blob/01ab95f3e37429ed8d3b380a8d2f73902eb325d9/CHANGELOG.md?plain=1#L934"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20191031-0004"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20200416-0004"},{"type":"WEB","url":"https://usn.ubuntu.com/4164-1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-16T04:38:02.023846593Z"}}