Security update for MozillaFirefox SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:14609-1 Final 1 1 2021-01-29T08:37:16Z current 2021-01-29T08:37:16Z 2021-01-29T08:37:16Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for MozillaFirefox This update for MozillaFirefox fixes the following issues: - Firefox Extended Support Release 78.7.0 ESR (MFSA 2021-04, bsc#1181414) * CVE-2021-23953: Fixed a Cross-origin information leakage via redirected PDF requests * CVE-2021-23954: Fixed a type confusion when using logical assignment operators in JavaScript switch statements * CVE-2020-26976: Fixed an issue where HTTPS pages could have been intercepted by a registered service worker when they should not have been * CVE-2021-23960: Fixed a use-after-poison for incorrectly redeclared JavaScript variables during GC * CVE-2021-23964: Fixed Memory safety bugs The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). slessp4-MozillaFirefox-14609 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ Link for SUSE-SU-2021:14609-1 https://lists.suse.com/pipermail/sle-security-updates/2021-January/008256.html E-Mail link for SUSE-SU-2021:14609-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1181414 SUSE Bug 1181414 https://www.suse.com/security/cve/CVE-2020-26976/ SUSE CVE CVE-2020-26976 page https://www.suse.com/security/cve/CVE-2021-23953/ SUSE CVE CVE-2021-23953 page https://www.suse.com/security/cve/CVE-2021-23954/ SUSE CVE CVE-2021-23954 page https://www.suse.com/security/cve/CVE-2021-23960/ SUSE CVE CVE-2021-23960 page https://www.suse.com/security/cve/CVE-2021-23964/ SUSE CVE CVE-2021-23964 page SUSE Linux Enterprise Server 11 SP4-LTSS MozillaFirefox-78.7.0-78.114.1 MozillaFirefox-translations-common-78.7.0-78.114.1 MozillaFirefox-translations-other-78.7.0-78.114.1 MozillaFirefox-78.7.0-78.114.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS MozillaFirefox-translations-common-78.7.0-78.114.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS MozillaFirefox-translations-other-78.7.0-78.114.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84. CVE-2020-26976 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-common-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-other-78.7.0-78.114.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ https://www.suse.com/security/cve/CVE-2020-26976.html CVE-2020-26976 https://bugzilla.suse.com/1180039 SUSE Bug 1180039 https://bugzilla.suse.com/1181414 SUSE Bug 1181414 If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. CVE-2021-23953 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-common-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-other-78.7.0-78.114.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ https://www.suse.com/security/cve/CVE-2021-23953.html CVE-2021-23953 https://bugzilla.suse.com/1181414 SUSE Bug 1181414 Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. CVE-2021-23954 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-common-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-other-78.7.0-78.114.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ https://www.suse.com/security/cve/CVE-2021-23954.html CVE-2021-23954 https://bugzilla.suse.com/1181414 SUSE Bug 1181414 Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. CVE-2021-23960 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-common-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-other-78.7.0-78.114.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ https://www.suse.com/security/cve/CVE-2021-23960.html CVE-2021-23960 https://bugzilla.suse.com/1181414 SUSE Bug 1181414 Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. CVE-2021-23964 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-common-78.7.0-78.114.1 SUSE Linux Enterprise Server 11 SP4-LTSS:MozillaFirefox-translations-other-78.7.0-78.114.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-202114609-1/ https://www.suse.com/security/cve/CVE-2021-23964.html CVE-2021-23964 https://bugzilla.suse.com/1181414 SUSE Bug 1181414