{"cve":"CVE-2017-18258","nvd":{"published":"2018-04-08T17:29:00.237","modified":"2026-10-14T07:16:40.117","status":"Modified","description":"The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-770"],"references":["https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb","https://kc.mcafee.com/corporate/index?page=content&id=SB10284","https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html","https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html","https://security.netapp.com/advisory/ntap-20190719-0001/"],"products":["xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T20:49:59.483420567+00:00"},"epss":{"cve":"CVE-2017-18258","score":0.02742,"percentile":0.86065,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-882p-jqgm-f45g","url":"https://osv.dev/vulnerability/GHSA-882p-jqgm-f45g","summary":"Uncontrolled resource consumption in nokogiri","modified":"2024-02-16T08:04:23.678693Z","packages":[{"ecosystem":"RubyGems","name":"nokogiri","purl":"pkg:gem/nokogiri","ranges":["<1.8.2"],"fixed":["1.8.2"]}]}],"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."]}