QID 376143

Date Published: 2021-12-09

QID 376143: Mozilla Firefox Multiple Vulnerabilities (MFSA2021-52)

Firefox is a free and open-source web browser developed for Windows, OS X, and Linux, with a mobile version for Android.

Mozilla Firefox is prone to
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-2021-43540: WebExtensions could have installed persistent ServiceWorkers
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-2021-43544: Receiving a malicious URL as text through a SEND intent could have led to XSS
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

Affected Products:
Prior to Firefox 95

QID Detection Logic (Authenticated) :
This checks for vulnerable version of Firefox browser.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as High - 6.8 severity.

Solution

Vendor has released fix to address these vulnerabilities. Refer to MFSA2021-52 or later

Vendor References

MFSA2021-52 - www.mozilla.org/en-US/security/advisories/mfsa2021-52/

CVEs related to QID 376143

CVE-2021-43543 | CVE-2021-43546 | CVE-2021-43541 | CVE-2021-43540 | CVE-2021-43536 | CVE-2021-43544 | CVE-2021-43545 | CVE-2021-43537 | CVE-2021-43539 | CVE-2021-43538 | CVE-2021-43542 |

Software Advisories

Advisory ID	Software	Component	Link
MFSA2021-52			www.mozilla.org/en-US/security/advisories/mfsa2021-52/

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].