Resource management error in Firefox for Android - CVE-2021-29962
Published: June 1, 2021
Vulnerability identifier: #VU53714
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-29962
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when processing multiple popups. A remote attacker can create a specially crafted webpage that opens multiple popups, which would make the Firefox for Android become unstable and hard-to-recover.
Affected software
Firefox for Android
How to mitigate CVE-2021-29962
Install updates from vendor's website.
Firefox for Android - update to 89.1.0