{"schema_version":"1.7.3","id":"SUSE-SU-2021:0257-1","published":"2021-02-01T13:46:08Z","modified":"2026-02-04T04:01:29.204065Z","related":["CVE-2020-15685","CVE-2020-26976","CVE-2021-23953","CVE-2021-23954","CVE-2021-23960","CVE-2021-23964"],"upstream":["CVE-2020-15685","CVE-2020-26976","CVE-2021-23953","CVE-2021-23954","CVE-2021-23960","CVE-2021-23964"],"summary":"Security update for MozillaThunderbird","details":"This update for MozillaThunderbird fixes the following issues:\n\n- Mozilla Thunderbird was updated to 78.7.0 ESR  (MFSA 2021-05, bsc#1181414)\n  * CVE-2021-23953: Fixed a Cross-origin information leakage via redirected PDF requests\n  * CVE-2021-23954: Fixed a type confusion when using logical assignment operators in JavaScript switch statements\n  * CVE-2020-26976: Fixed an issue where HTTPS pages could have been intercepted by a registered service worker when they should not have been\n  * CVE-2021-23960: Fixed a use-after-poison for incorrectly redeclared JavaScript variables during GC\n  * CVE-2021-23964: Fixed Memory safety bugs\n  * CVE-2020-15685: Fixed an IMAP Response Injection when using STARTTLS\n","affected":[{"package":{"name":"MozillaThunderbird","ecosystem":"SUSE:Linux Enterprise Workstation Extension 15 SP2","purl":"pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"78.7.0-8.9.1"}]}],"ecosystem_specific":{"binaries":[{"MozillaThunderbird":"78.7.0-8.9.1","MozillaThunderbird-translations-common":"78.7.0-8.9.1","MozillaThunderbird-translations-other":"78.7.0-8.9.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:0257-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20210257-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1181414"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-15685"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-26976"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-23953"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-23954"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-23960"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-23964"}]}