{"cve":"CVE-2019-18197","nvd":{"published":"2019-10-18T21:15:10.793","modified":"2026-06-17T02:24:27.370","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.5},"cwes":["CWE-416","CWE-908"],"references":["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"],"products":["canonical:ubuntu_linux","debian:debian_linux","xmlsoft:libxslt"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-18197","score":0.04446,"percentile":0.91415,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-242x-7cm6-4w8j","url":"https://osv.dev/vulnerability/GHSA-242x-7cm6-4w8j","summary":"Nokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability","modified":"2026-06-09T10:22:03Z","packages":[{"ecosystem":"RubyGems","name":"nokogiri","purl":"pkg:gem/nokogiri","ranges":["<1.10.5"],"fixed":["1.10.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}