QID 375542

Date Published: 2021-05-10

QID 375542: Mozilla Firefox Race Condition Vulnerability (MFSA2021-20)

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

When Web Render components were destructed, a race condition could have caused undefined behavior, and Mozilla presumes that with enough effort may have been exploitable to run arbitrary code.

Affected Products:
Prior to Firefox 88.0.1

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

Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code on the target system.

CVSS V2 rated as High - 7.5 severity.

Solution

Vendor has released fix to address these vulnerabilities. Refer to MFSA 2021-20

Vendor References

MFSA2021-20 - www.mozilla.org/en-US/security/advisories/mfsa2021-20/

CVEs related to QID 375542

CVE-2021-29952 |

Software Advisories

Advisory ID	Software	Component	Link
MFSA 2021-20			www.mozilla.org/en-US/security/advisories/mfsa2021-20/

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