{"schemaVersion":3,"id":"USN-7189-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"HTMLDOC vulnerabilities\n\nIt was discovered that HTMLDOC incorrectly handled certain inputs, which\ncould lead to an integer overflow. An attacker could potentially use this\nissue to cause a denial of service or execute arbitrary code.\n(CVE-2021-20308)\n\nIt was discovered that HTMLDOC incorrectly handled memory in pspdf_export,\nwhich could lead to a double-free. An attacker could potentially use this\nissue to cause a denial of service or execute arbitrary code.\n(CVE-2021-23158)\n\nIt was discovered that HTMLDOC incorrectly handled memory when loading a\nJPEG image, which could lead to a NULL pointer dereference. An attacker\ncould potentially use this issue to cause a denial of service.\n(CVE-2021-23191, CVE-2021-26948)\n\nIt was discovered that HTMLDOC incorrectly handled certain inputs, which\ncould lead to a stack buffer overflow. An attacker could potentially use\nthis issue to cause a denial of service or execute arbitrary code.\n(CVE-2021-23206, CVE-2021-40985, CVE-2021-43579)\n\nIt was discovered that HTMLDOC incorrectly handled memory in\npdpdf_prepare_page and render_table_row, which could lead to a heap buffer\noverflow. An attacker could potentially use this issue to cause a denial\nof service or execute arbitrary code. (CVE-2021-26252, CVE-2021-26259)\n\nIt was discovered that HTMLDOC incorrectly handled memory in\nparse_paragraph, which could lead to a heap buffer overflow. An attacker\ncould potentially use this issue to cause a denial of service or execute\narbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-34119)\n\nIt was discovered that HTMLDOC incorrectly handled memory in parse_tree.\nAn attacker could potentially use this issue to leak sensitive\ninformation. (CVE-2021-34121)","dates":{"published":"2025-01-08T01:23:50.000Z","modified":"2026-06-25T13:32:29.997Z","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":"htmldoc","name":"htmldoc","label":"htmldoc","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/htmldoc","purlType":"deb","versions":[{"text":"< 1.8.27-8ubuntu1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 1.8.27-8ubuntu1.1+esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 1.9.2-1ubuntu0.2+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.9.7-1ubuntu0.3+esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.8.27-8ubuntu1+esm3 | < 1.8.27-8ubuntu1.1+esm2 | < 1.9.2-1ubuntu0.2+esm1 | < 1.9.7-1ubuntu0.3+esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-7189-1","label":"ubuntu.com/security/notices/USN-7189-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-20308","label":"ubuntu.com/security/CVE-2021-20308","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-23158","label":"ubuntu.com/security/CVE-2021-23158","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-23191","label":"ubuntu.com/security/CVE-2021-23191","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-23206","label":"ubuntu.com/security/CVE-2021-23206","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-26252","label":"ubuntu.com/security/CVE-2021-26252","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-26259","label":"ubuntu.com/security/CVE-2021-26259","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-26948","label":"ubuntu.com/security/CVE-2021-26948","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-34119","label":"ubuntu.com/security/CVE-2021-34119","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-34121","label":"ubuntu.com/security/CVE-2021-34121","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-40985","label":"ubuntu.com/security/CVE-2021-40985","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-43579","label":"ubuntu.com/security/CVE-2021-43579","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-20308","CVE-2021-23158","CVE-2021-23191","CVE-2021-23206","CVE-2021-26252","CVE-2021-26259","CVE-2021-26948","CVE-2021-34119","CVE-2021-34121","CVE-2021-40985","CVE-2021-43579"],"downstream":[],"duplicates":[],"related":["CVE-2021-20308","CVE-2021-23158","CVE-2021-23191","CVE-2021-23206","CVE-2021-26252","CVE-2021-26259","CVE-2021-26948","CVE-2021-34119","CVE-2021-34121","CVE-2021-40985","CVE-2021-43579"]},"timeline":[{"kind":"published","date":"2025-01-08T01:23:50.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:32:29.997Z","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":"2026-10-22T10:25:46.552Z","stale":false,"partial":false}}