PT-2021-2883 · Mozilla+4 · Firefox For Android+5

Tyson Smith · Published 2021-05-05 · Updated 2024-12-12 · CVE-2021-29952

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 88.0.1 Firefox for Android versions prior to 88.1.3

Description The issue is caused by synchronization errors when using shared resources in the Web Render components of the Firefox web browser. This could lead to undefined behavior when these components are destroyed, potentially allowing a remote attacker to execute arbitrary code in the system.

Recommendations For Firefox versions prior to 88.0.1, update to version 88.0.1 or later to resolve the issue. For Firefox for Android versions prior to 88.1.3, update to version 88.1.3 or later to resolve the issue.

Exploit

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2021-1771

ALT-PU-2021-3368

ALT-PU-2022-1782

BDU:2021-02451

CVE-2021-29952

OESA-2023-1673

OESA-2023-1674

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

USN-4942-1

Affected Products

Alt Linux

Astra Linux

Firefox

Firefox For Android

Linuxmint

Ubuntu

References · 2181

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2022-1529 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-25730 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-23603 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-28162 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-38477 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-29952 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-26978 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-22757 · Security Note