{ "id": "CVE-2003-1564", "sourceIdentifier": "cve@mitre.org", "published": "2003-12-31T05:00:00.000", "lastModified": "2025-04-03T01:03:51.193", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [ { "lang": "en", "value": "libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the \"billion laughs attack.\"" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "baseScore": 9.3, "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE" }, "baseSeverity": "HIGH", "exploitabilityScore": 8.6, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": true, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-776" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.5.0", "matchCriteriaId": "FFC0B453-3262-463A-9748-EC2863D58401" } ] } ] } ], "references": [ { "url": "http://mail.gnome.org/archives/xml/2008-August/msg00034.html", "source": "cve@mitre.org", "tags": [ "Mailing List", "Patch" ] }, { "url": "http://secunia.com/advisories/31868", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2", "source": "cve@mitre.org", "tags": [ "Issue Tracking" ] }, { "url": "http://www.redhat.com/support/errata/RHSA-2008-0886.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://www.stylusstudio.com/xmldev/200302/post20020.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://xmlsoft.org/news.html", "source": "cve@mitre.org", "tags": [ "Release Notes" ] }, { "url": "http://mail.gnome.org/archives/xml/2008-August/msg00034.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch" ] }, { "url": "http://secunia.com/advisories/31868", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Broken Link" ] }, { "url": "http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking" ] }, { "url": "http://www.redhat.com/support/errata/RHSA-2008-0886.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Broken Link" ] }, { "url": "http://www.stylusstudio.com/xmldev/200302/post20020.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Broken Link" ] }, { "url": "http://xmlsoft.org/news.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes" ] } ] }