{"id":"USN-5074-1","summary":"firefox vulnerabilities","details":"Multiple security issues were discovered in Firefox. If a user were\ntricked into opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, bypass mixed\ncontent blocking, or execute arbitrary code.\n","modified":"2026-02-10T04:42:19Z","published":"2021-09-09T18:42:21Z","related":["UBUNTU-CVE-2021-38491","UBUNTU-CVE-2021-38493","UBUNTU-CVE-2021-38494"],"upstream":["CVE-2021-38491","CVE-2021-38493","CVE-2021-38494","UBUNTU-CVE-2021-38491","UBUNTU-CVE-2021-38493","UBUNTU-CVE-2021-38494"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5074-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38491"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38493"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38494"}],"affected":[{"package":{"name":"firefox","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/firefox@92.0+build3-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"92.0+build3-0ubuntu0.18.04.1"}]}],"versions":["56.0+build6-0ubuntu1","57.0.1+build2-0ubuntu1","59.0.1+build1-0ubuntu1","59.0.2+build1-0ubuntu1","60.0+build2-0ubuntu1","60.0.1+build2-0ubuntu0.18.04.1","60.0.2+build1-0ubuntu0.18.04.1","61.0+build3-0ubuntu0.18.04.1","61.0.1+build1-0ubuntu0.18.04.1","62.0+build2-0ubuntu0.18.04.3","62.0+build2-0ubuntu0.18.04.4","62.0+build2-0ubuntu0.18.04.5","62.0.3+build1-0ubuntu0.18.04.1","63.0+build2-0ubuntu0.18.04.2","63.0.3+build1-0ubuntu0.18.04.1","64.0+build3-0ubuntu0.18.04.1","65.0+build2-0ubuntu0.18.04.1","65.0.1+build2-0ubuntu0.18.04.1","66.0+build3-0ubuntu0.18.04.1","66.0.1+build1-0ubuntu0.18.04.1","66.0.2+build1-0ubuntu0.18.04.1","66.0.3+build1-0ubuntu0.18.04.1","66.0.4+build3-0ubuntu0.18.04.1","66.0.5+build1-0ubuntu0.18.04.1","67.0+build2-0ubuntu0.18.04.1","67.0.1+build1-0ubuntu0.18.04.1","67.0.2+build2-0ubuntu0.18.04.1","67.0.3+build1-0ubuntu0.18.04.1","67.0.4+build1-0ubuntu0.18.04.1","68.0+build3-0ubuntu0.18.04.1","68.0.1+build1-0ubuntu0.18.04.1","68.0.2+build1-0ubuntu0.18.04.1","69.0+build2-0ubuntu0.18.04.1","69.0.1+build1-0ubuntu0.18.04.1","69.0.2+build1-0ubuntu0.18.04.1","70.0+build2-0ubuntu0.18.04.1","70.0.1+build1-0ubuntu0.18.04.1","71.0+build5-0ubuntu0.18.04.1","72.0.1+build1-0ubuntu0.18.04.1","72.0.2+build1-0ubuntu0.18.04.1","73.0+build3-0ubuntu0.18.04.1","73.0.1+build1-0ubuntu0.18.04.1","74.0+build3-0ubuntu0.18.04.1","74.0.1+build1-0ubuntu0.18.04.1","75.0+build3-0ubuntu0.18.04.1","76.0+build2-0ubuntu0.18.04.1","76.0.1+build1-0ubuntu0.18.04.1","77.0.1+build1-0ubuntu0.18.04.1","78.0.1+build1-0ubuntu0.18.04.1","78.0.2+build2-0ubuntu0.18.04.1","79.0+build1-0ubuntu0.18.04.1","80.0+build2-0ubuntu0.18.04.1","80.0.1+build1-0ubuntu0.18.04.1","81.0+build2-0ubuntu0.18.04.1","81.0.2+build1-0ubuntu0.18.04.1","82.0+build2-0ubuntu0.18.04.1","82.0.2+build1-0ubuntu0.18.04.1","82.0.3+build1-0ubuntu0.18.04.1","83.0+build2-0ubuntu0.18.04.2","84.0+build3-0ubuntu0.18.04.1","84.0.1+build1-0ubuntu0.18.04.1","84.0.2+build1-0ubuntu0.18.04.1","85.0+build1-0ubuntu0.18.04.1","85.0.1+build1-0ubuntu0.18.04.1","86.0+build3-0ubuntu0.18.04.1","86.0.1+build1-0ubuntu0.18.04.1","87.0+build3-0ubuntu0.18.04.2","88.0+build2-0ubuntu0.18.04.2","88.0.1+build1-0ubuntu0.18.04.2","89.0+build2-0ubuntu0.18.04.2","89.0.1+build1-0ubuntu0.18.04.1","89.0.2+build1-0ubuntu0.18.04.1","90.0+build1-0ubuntu0.18.04.1","90.0.2+build1-0ubuntu0.18.04.1","91.0+build2-0ubuntu0.18.04.1","91.0.1+build1-0ubuntu0.18.04.1","91.0.2+build1-0ubuntu0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"92.0+build3-0ubuntu0.18.04.1","binary_name":"firefox"},{"binary_version":"92.0+build3-0ubuntu0.18.04.1","binary_name":"firefox-dev"},{"binary_version":"92.0+build3-0ubuntu0.18.04.1","binary_name":"firefox-geckodriver"},{"binary_version":"92.0+build3-0ubuntu0.18.04.1","binary_name":"firefox-mozsymbols"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38491"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38493"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38494"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5074-1.json"}},{"package":{"name":"firefox","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/firefox@92.0+build3-0ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"92.0+build3-0ubuntu0.20.04.1"}]}],"versions":["69.0.3+build1-0ubuntu1","70.0+build2-0ubuntu1","70.0+build2-0ubuntu2","70.0.1+build1-0ubuntu2","71.0+build2-0ubuntu2","71.0+build5-0ubuntu1","72.0.1+build1-0ubuntu1","72.0.2+build1-0ubuntu1","73.0+build1-0ubuntu1","73.0+build2-0ubuntu1","73.0+build3-0ubuntu1","73.0.1+build1-0ubuntu1","74.0+build1-0ubuntu1","74.0+build2-0ubuntu1","74.0+build2-0ubuntu2","74.0+build3-0ubuntu1","75.0+build3-0ubuntu1","76.0+build2-0ubuntu0.20.04.1","76.0.1+build1-0ubuntu0.20.04.1","77.0.1+build1-0ubuntu0.20.04.1","78.0.1+build1-0ubuntu0.20.04.1","78.0.2+build2-0ubuntu0.20.04.1","79.0+build1-0ubuntu0.20.04.1","80.0+build2-0ubuntu0.20.04.1","80.0.1+build1-0ubuntu0.20.04.1","81.0+build2-0ubuntu0.20.04.1","81.0.2+build1-0ubuntu0.20.04.1","82.0+build2-0ubuntu0.20.04.1","82.0.2+build1-0ubuntu0.20.04.1","82.0.3+build1-0ubuntu0.20.04.1","83.0+build2-0ubuntu0.20.04.1","84.0+build3-0ubuntu0.20.04.1","84.0.1+build1-0ubuntu0.20.04.1","84.0.2+build1-0ubuntu0.20.04.1","85.0+build1-0ubuntu0.20.04.1","85.0.1+build1-0ubuntu0.20.04.1","86.0+build3-0ubuntu0.20.04.1","86.0.1+build1-0ubuntu0.20.04.1","87.0+build3-0ubuntu0.20.04.2","88.0+build2-0ubuntu0.20.04.1","88.0.1+build1-0ubuntu0.20.04.2","89.0+build2-0ubuntu0.20.04.2","89.0.1+build1-0ubuntu0.20.04.1","89.0.2+build1-0ubuntu0.20.04.1","90.0+build1-0ubuntu0.20.04.1","90.0.2+build1-0ubuntu0.20.04.1","91.0+build2-0ubuntu0.20.04.1","91.0.1+build1-0ubuntu0.20.04.1","91.0.2+build1-0ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"92.0+build3-0ubuntu0.20.04.1","binary_name":"firefox"},{"binary_version":"92.0+build3-0ubuntu0.20.04.1","binary_name":"firefox-dev"},{"binary_version":"92.0+build3-0ubuntu0.20.04.1","binary_name":"firefox-geckodriver"},{"binary_version":"92.0+build3-0ubuntu0.20.04.1","binary_name":"firefox-mozsymbols"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38491"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38493"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38494"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5074-1.json"}}],"schema_version":"1.7.3"}