{"id":"USN-7189-1","summary":"HTMLDOC vulnerabilities","details":"It 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)\n","modified":"2026-02-10T04:46:28Z","published":"2025-01-08T01:23:50Z","related":["UBUNTU-CVE-2021-20308","UBUNTU-CVE-2021-23158","UBUNTU-CVE-2021-23191","UBUNTU-CVE-2021-23206","UBUNTU-CVE-2021-26252","UBUNTU-CVE-2021-26259","UBUNTU-CVE-2021-26948","UBUNTU-CVE-2021-34119","UBUNTU-CVE-2021-34121","UBUNTU-CVE-2021-40985","UBUNTU-CVE-2021-43579"],"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","UBUNTU-CVE-2021-20308","UBUNTU-CVE-2021-23158","UBUNTU-CVE-2021-23191","UBUNTU-CVE-2021-23206","UBUNTU-CVE-2021-26252","UBUNTU-CVE-2021-26259","UBUNTU-CVE-2021-26948","UBUNTU-CVE-2021-34119","UBUNTU-CVE-2021-34121","UBUNTU-CVE-2021-40985","UBUNTU-CVE-2021-43579"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7189-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-20308"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23158"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23191"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23206"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-26252"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-26259"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-26948"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-34119"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-34121"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-40985"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-43579"}],"affected":[{"package":{"name":"htmldoc","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/htmldoc@1.8.27-8ubuntu1+esm3?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.27-8ubuntu1+esm3"}]}],"versions":["1.8.27-8ubuntu1","1.8.27-8ubuntu1+esm1","1.8.27-8ubuntu1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.27-8ubuntu1+esm3","binary_name":"htmldoc"},{"binary_version":"1.8.27-8ubuntu1+esm3","binary_name":"htmldoc-common"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7189-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-20308"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23158"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23191"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23206"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26252"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26259"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26948"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-34119"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-34121"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-40985"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-43579"}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}},{"package":{"name":"htmldoc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/htmldoc@1.8.27-8ubuntu1.1+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.27-8ubuntu1.1+esm2"}]}],"versions":["1.8.27-8ubuntu1","1.8.27-8ubuntu1.1","1.8.27-8ubuntu1.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.27-8ubuntu1.1+esm2","binary_name":"htmldoc"},{"binary_version":"1.8.27-8ubuntu1.1+esm2","binary_name":"htmldoc-common"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7189-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-20308"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23158"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23191"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23206"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26252"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26259"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26948"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-34119"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-34121"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-40985"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-43579"}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"htmldoc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/htmldoc@1.9.2-1ubuntu0.2+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-1ubuntu0.2+esm1"}]}],"versions":["1.8.27-8ubuntu2","1.8.27-8ubuntu3","1.9.2-1","1.9.2-1ubuntu0.1","1.9.2-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.2-1ubuntu0.2+esm1","binary_name":"htmldoc"},{"binary_version":"1.9.2-1ubuntu0.2+esm1","binary_name":"htmldoc-common"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7189-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-20308"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23158"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23191"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23206"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26252"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26259"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26948"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-34119"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-34121"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-40985"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-43579"}],"ecosystem":"Ubuntu:Pro:18.04:LTS"}}},{"package":{"name":"htmldoc","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/htmldoc@1.9.7-1ubuntu0.3+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.7-1ubuntu0.3+esm1"}]}],"versions":["1.9.3-1","1.9.7-1","1.9.7-1build1","1.9.7-1ubuntu0.2","1.9.7-1ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.7-1ubuntu0.3+esm1","binary_name":"htmldoc"},{"binary_version":"1.9.7-1ubuntu0.3+esm1","binary_name":"htmldoc-common"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7189-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-20308"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23158"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23191"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23206"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26252"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26259"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-26948"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-34119"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-34121"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-40985"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-43579"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}}],"schema_version":"1.7.3"}