Synopsis:          Important: firefox security update
Advisory ID:       SLSA-2021:0290-1
Issue Date:        2021-01-27
CVE Numbers:       CVE-2021-23953
                   CVE-2021-23954
                   CVE-2020-26976
                   CVE-2021-23960
                   CVE-2021-23964
--

This update upgrades Firefox to version 78.7.0 ESR.

Security Fix(es):

* Mozilla: Cross-origin information leakage via redirected PDF requests
(CVE-2021-23953)

* Mozilla: Type confusion when using logical assignment operators in
JavaScript switch statements (CVE-2021-23954)

* Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7
(CVE-2021-23964)

* Mozilla: HTTPS pages could have been intercepted by a registered service
worker when they should not have been (CVE-2020-26976)

* Mozilla: Use-after-poison for incorrectly redeclared JavaScript
variables during GC (CVE-2021-23960)
--

SL7
  x86_64
    firefox-78.7.0-2.el7_9.x86_64.rpm
    firefox-debuginfo-78.7.0-2.el7_9.x86_64.rpm
    firefox-78.7.0-2.el7_9.i686.rpm

- Scientific Linux Development Team

SciLinux: SLSA-2021-0290-1 Important: firefox on SL7.x x86_64

This update upgrades Firefox to version 78.7.0 ESR

Summary

Important: firefox security update



Security Fixes

* Mozilla: Cross-origin information leakage via redirected PDF requests (CVE-2021-23953)
* Mozilla: Type confusion when using logical assignment operators in JavaScript switch statements (CVE-2021-23954)
* Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7 (CVE-2021-23964)
* Mozilla: HTTPS pages could have been intercepted by a registered service worker when they should not have been (CVE-2020-26976)
* Mozilla: Use-after-poison for incorrectly redeclared JavaScript variables during GC (CVE-2021-23960)
SL7 x86_64 firefox-78.7.0-2.el7_9.x86_64.rpm firefox-debuginfo-78.7.0-2.el7_9.x86_64.rpm firefox-78.7.0-2.el7_9.i686.rpm
- Scientific Linux Development Team

Severity
Advisory ID: SLSA-2021:0290-1
Issued Date: : 2021-01-27
CVE Numbers: CVE-2021-23953
CVE-2021-23954
CVE-2020-26976

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