SUSE-SU-2021:14609-1: important: Security update for MozillaFirefox

sle-security-updates at sle-security-updates at
Fri Jan 29 07:21:56 MST 2021

   SUSE Security Update: Security update for MozillaFirefox

Announcement ID:    SUSE-SU-2021:14609-1
Rating:             important
References:         #1181414 
Cross-References:   CVE-2020-26976 CVE-2021-23953 CVE-2021-23954
                    CVE-2021-23960 CVE-2021-23964
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4-LTSS
                    SUSE Linux Enterprise Debuginfo 11-SP4

   An update that fixes 5 vulnerabilities is now available.


   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
     * CVE-2021-23960: Fixed a use-after-poison for incorrectly redeclared
       JavaScript variables during GC
     * CVE-2021-23964: Fixed Memory safety bugs

Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 11-SP4-LTSS:

      zypper in -t patch slessp4-MozillaFirefox-14609=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-MozillaFirefox-14609=1

Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (x86_64):


   - SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64):



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