{"schemaVersion":3,"id":"USN-7302-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libxml2 vulnerabilities\n\nIt was discovered that libxml2 incorrectly handled certain memory\noperations. A remote attacker could use this issue to cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and\nUbuntu 18.04 LTS. (CVE-2022-49043)\n\nIt was discovered that the libxml2 xmllint tool incorrectly handled\ncertain memory operations. If a user or automated system were tricked into\nrunning xmllint on a specially crafted xml file, a remote attacker could\ncause xmllint to crash, resulting in a denial of service. This issue only\naffected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS.\n(CVE-2024-34459)\n\nIt was discovered that libxml2 did not properly manage memory. An attacker\ncould possibly use this issue to cause a denial of service or execute\narbitrary code. (CVE-2024-56171)\n\nIt was discovered that libxml2 could be made to write out of bounds. An\nattacker could possibly use this issue to cause a denial of service or\nexecute arbitrary code. (CVE-2025-24928)\n\nIt was discovered that libxml2 could be made to dereference invalid memory.\nAn attacker could possibly use this issue to cause a denial of service.\n(CVE-2025-27113)","dates":{"published":"2025-02-25T19:23:47.000Z","modified":"2026-06-25T13:31:46.031Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"libxml2","name":"libxml2","label":"libxml2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libxml2","purlType":"deb","versions":[{"text":"< 2.9.1+dfsg1-3ubuntu4.13+esm7","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.3+dfsg1-1ubuntu0.7+esm7","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.4+dfsg1-6.1ubuntu1.9+esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.10+dfsg-5ubuntu0.20.04.9","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.13+dfsg-1ubuntu0.6","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.14+dfsg-1.3ubuntu3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.9.1+dfsg1-3ubuntu4.13+esm7 | < 2.9.3+dfsg1-1ubuntu0.7+esm7 | < 2.9.4+dfsg1-6.1ubuntu1.9+esm2 | < 2.9.10+dfsg-5ubuntu0.20.04.9 | < 2.9.13+dfsg-1ubuntu0.6 | < 2.9.14+dfsg-1.3ubuntu3.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-7302-1","label":"ubuntu.com/security/notices/USN-7302-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-49043","label":"ubuntu.com/security/CVE-2022-49043","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-34459","label":"ubuntu.com/security/CVE-2024-34459","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-56171","label":"ubuntu.com/security/CVE-2024-56171","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-24928","label":"ubuntu.com/security/CVE-2025-24928","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-27113","label":"ubuntu.com/security/CVE-2025-27113","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2022-49043","CVE-2024-34459","CVE-2024-56171","CVE-2025-24928","CVE-2025-27113"],"downstream":[],"duplicates":[],"related":["CVE-2022-49043","CVE-2024-34459","CVE-2024-56171","CVE-2025-24928","CVE-2025-27113"]},"timeline":[{"kind":"published","date":"2025-02-25T19:23:47.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:31:46.031Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T12:13:20.561Z","stale":false,"partial":false}}