PT-2021-7313 · Mozilla+1 · Firefox For Android+1

Wladimir Palant · Published 2021-06-03 · Updated 2024-12-12 · CVE-2021-29962

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Firefox for Android versions prior to 89

Description The issue is related to the incorrect cleanup or release of resources, which can be exploited by an attacker to cause a denial of service. This can happen when a website opens too many popups, causing Firefox for Android to become unstable and hard to recover. The estimated number of potentially affected devices is not specified.

Recommendations For Firefox for Android versions prior to 89, update to version 89 or later to resolve the issue. As a temporary workaround, consider restricting the number of popups that can be opened by a website to minimize the risk of exploitation.

Fix

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

ALT-PU-2021-1919

ALT-PU-2021-3368

ALT-PU-2022-1782

BDU:2022-05613

CVE-2021-29962

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

Affected Products

Alt Linux

Firefox For Android

References · 1872

• https://ubuntu.com/security/CVE-2021-29962 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2021-23 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29962 · Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1701673 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29962 · Security Note
• https://bdu.fstec.ru/vul/2022-05613 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10600-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-29962 · Security Note
• https://mozilla.org/en-US/security/advisories/mfsa2021-23/#CVE-2021-29962 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-29962 · Vendor Advisory
• https://suse.com/security/cve/CVE-2016-2830 · Note
• https://suse.com/security/cve/CVE-2022-45421 · Note
• https://suse.com/security/cve/CVE-2017-7783 · Note
• https://suse.com/security/cve/CVE-2021-32810 · Note