{"id":"USN-4202-1","summary":"thunderbird vulnerabilities","details":"It was discovered that a specially crafted S/MIME message with an inner\nencryption layer could be displayed as having a valid signature in some\ncircumstances, even if the signer had no access to the encrypted message.\nAn attacker could potentially exploit this to spoof the message author.\n(CVE-2019-11755)\n\nMultiple security issues were discovered in Thunderbird. If a user were\ntricked in to opening a specially crafted website in a browsing context,\nan attacker could potentially exploit these to cause a denial of service,\nbypass security restrictions, bypass same-origin restrictions, conduct\ncross-site scripting (XSS) attacks, or execute arbitrary code.\n(CVE-2019-11757, CVE-2019-11758, CVE-2019-11759, CVE-2019-11760,\nCVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764)\n\nA heap overflow was discovered in the expat library in Thunderbird. If a\nuser were tricked in to opening a specially crafted message, an attacker\ncould potentially exploit this to cause a denial of service, or execute\narbitrary code. (CVE-2019-15903)\n","modified":"2026-04-24T09:17:36.382492681Z","published":"2019-11-26T23:47:36Z","related":["UBUNTU-CVE-2019-11755","UBUNTU-CVE-2019-11757","UBUNTU-CVE-2019-11759","UBUNTU-CVE-2019-11760","UBUNTU-CVE-2019-11761","UBUNTU-CVE-2019-11762","UBUNTU-CVE-2019-11763","UBUNTU-CVE-2019-11764","UBUNTU-CVE-2019-15903"],"upstream":["CVE-2019-11755","CVE-2019-11757","CVE-2019-11759","CVE-2019-11760","CVE-2019-11761","CVE-2019-11762","CVE-2019-11763","CVE-2019-11764","UBUNTU-CVE-2019-11755","UBUNTU-CVE-2019-11757","UBUNTU-CVE-2019-11758","UBUNTU-CVE-2019-11759","UBUNTU-CVE-2019-11760","UBUNTU-CVE-2019-11761","UBUNTU-CVE-2019-11762","UBUNTU-CVE-2019-11763","UBUNTU-CVE-2019-11764"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4202-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11755"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11757"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11758"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11759"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11760"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11761"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11762"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11763"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11764"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/thunderbird@1:68.2.1+build1-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:68.2.1+build1-0ubuntu0.18.04.1"}]}],"versions":["1:52.4.0+build1-0ubuntu2","1:52.6.0+build1-0ubuntu1","1:52.7.0+build1-0ubuntu1","1:52.8.0+build1-0ubuntu0.18.04.1","1:52.9.1+build3-0ubuntu0.18.04.1","1:60.2.1+build1-0ubuntu0.18.04.2","1:60.4.0+build2-0ubuntu0.18.04.1","1:60.5.1+build2-0ubuntu0.18.04.1","1:60.6.1+build2-0ubuntu0.18.04.1","1:60.7.0+build1-0ubuntu0.18.04.1","1:60.7.1+build1-0ubuntu0.18.04.1","1:60.7.2+build2-0ubuntu0.18.04.1","1:60.8.0+build1-0ubuntu0.18.04.1","1:60.9.0+build1-0ubuntu0.18.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"thunderbird","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"},{"binary_name":"thunderbird-gnome-support","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"},{"binary_name":"thunderbird-mozsymbols","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"},{"binary_name":"xul-ext-calendar-timezones","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"},{"binary_name":"xul-ext-gdata-provider","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"},{"binary_name":"xul-ext-lightning","binary_version":"1:68.2.1+build1-0ubuntu0.18.04.1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2019-11755","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-11757","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-2019-11759","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-2019-11760","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-11761","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-11762","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-11763","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-11764","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4202-1.json"}}],"schema_version":"1.7.5"}