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OPENSUSE-SU-2021:1184-1 Not scored

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Firefox Extended Support Release 78.13.0 ESR (MFSA 2021-34, bsc#1188891): - CVE-2021-29986: Race condition when resolving DNS names could have led to memory corruption - CVE-2021-29988: Memory corruption as a result of incorrect style treatment - CVE-2021-29984: Incorrect instruction reordering during JIT optimization - CVE-2021-29980: Uninitialized memory in a canvas object could have led to memory corruption - CVE-2021-29985: Use-after-free media channels - CVE-2021-29989: Memory safety bugs fixed in Firefox 91 and Firefox ESR 78.13 This update was imported from the SUSE:SLE-15-SP2:Update update project.

Exploit probability Not scored
Published August 23, 2021
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

openSUSE:Leap 15.2 MozillaFirefox

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities openSUSE-SU-2021:1184-1

This update for MozillaFirefox fixes the following issues: Firefox Extended Support Release 78.13.0 ESR (MFSA 2021-34, bsc#1188891): - CVE-2021-29986: Race condition when resolving DNS names could have led to memory corruption - CVE-2021-29988: Memory corruption as a result of incorrect style treatment - CVE-2021-29984: Incorrect instruction reordering during JIT optimization - CVE-2021-29980: Uninitialized memory in a canvas object could have led to memory corruption - CVE-2021-29985: Use-after-free media channels - CVE-2021-29989: Memory safety bugs fixed in Firefox 91 and Firefox ESR 78.13 This update was imported from the SUSE:SLE-15-SP2:Update update project.

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05 / REFERENCES

Further evidence