Описание
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
This update was imported from the SUSE:SLE-15:Update update project.
Список пакетов
openSUSE Leap 15.1
Ссылки
- E-Mail link for openSUSE-SU-2021:0222-1
- SUSE Security Ratings
- SUSE Bug 1181414
- SUSE CVE CVE-2020-26976 page
- SUSE CVE CVE-2021-23953 page
- SUSE CVE CVE-2021-23954 page
- SUSE CVE CVE-2021-23960 page
- SUSE CVE CVE-2021-23964 page
Описание
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.
Затронутые продукты
Ссылки
- CVE-2020-26976
- SUSE Bug 1180039
- SUSE Bug 1181414
Описание
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.
Затронутые продукты
Ссылки
- CVE-2021-23953
- SUSE Bug 1181414
Описание
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.
Затронутые продукты
Ссылки
- CVE-2021-23954
- SUSE Bug 1181414
Описание
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.
Затронутые продукты
Ссылки
- CVE-2021-23960
- SUSE Bug 1181414
Описание
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.
Затронутые продукты
Ссылки
- CVE-2021-23964
- SUSE Bug 1181414