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🛡️ SUSE-SU-2021:14859-1 — mozillafirefox (CVE-2021-43536 +8 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Extended Support Release 91.4.0 (bsc#1193485):

  • CVE-2021-43536: URL leakage when navigating while executing asynchronous function
  • CVE-2021-43537: Heap buffer overflow when using structured clone
  • CVE-2021-43538: Missing fullscreen and pointer lock notification when requesting both
  • CVE-2021-43539: GC rooting failure when calling wasm instance methods
  • CVE-2021-43541: External protocol handler parameters were unescaped
  • CVE-2021-43542: XMLHttpRequest error codes could have leaked the existence of an external protocol handler
  • CVE-2021-43543: Bypass of CSP sandbox directive when embedding
  • CVE-2021-43545: Denial of Service when using the Location API in a loop
  • CVE-2021-43546: Cursor spoofing could overlay user interface when native cursor is zoomed
  • Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4
  • Removed x-scheme-handler/ftp from MozillaFirefox.desktop (bsc#1193321)

Affected software

SUSE-SU-2021:14859-1 is recorded against 1 package.

  • mozillafirefox (fixed in 91.4.0-78.154.1)

Timeline and source

Published on 10 December 2021 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.suse.com (Advisory)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2021-12-10
Updated 2026-08-20
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
mozillafirefox — 91.4.0-78.154.1

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.