PT-2021-4031 · Mozilla+8 · Firefox Esr+10

Gabriele Svelto + 1 · Published 2021-08-26 · Updated 2024-12-12 · CVE-2021-38493

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 91 and earlier Firefox ESR versions 78.13 and earlier Thunderbird versions 78.13 and earlier

Description The issue is related to memory safety bugs, which can lead to memory corruption. With sufficient effort, these bugs could potentially be exploited to run arbitrary code. The vulnerability is also described as a buffer overflow in memory, which could allow a remote attacker to execute arbitrary code.

Recommendations For Firefox versions 91 and earlier, update to version 92 or later. For Firefox ESR versions 78.13 and earlier, update to version 78.14 or later. For Thunderbird versions 78.13 and earlier, update to version 78.14 or later.

Exploit

Fix

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

ALT-PU-2021-2636

ALT-PU-2021-2718

ALT-PU-2021-2739

ALT-PU-2021-2759

ALT-PU-2021-2794

ALT-PU-2021-2830

ALT-PU-2021-2849

ALT-PU-2021-2942

ALT-PU-2021-3368

ALT-PU-2022-1782

ALT-PU-2022-2458

ALT-PU-2022-2929

ALT-PU-2023-1138

ALT-PU-2023-4336

BDU:2021-04558

CESA-2021_3494

CESA-2021_3497

CESA-2021_3498

CESA-2021_3499

CVE-2021-38493

DLA-2756-1

DLA-2757-1

DSA-4969-1

DSA-4973-1

MGASA-2021-0425

MGASA-2021-0427

OESA-2023-1673

OESA-2023-1674

OPENSUSE-SU-2021:1635-1

OPENSUSE-SU-2021:4150-1

OPENSUSE-SU-2021_1635-1

OPENSUSE-SU-2021_4150-1

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

RHSA-2021:3494

RHSA-2021:3495

RHSA-2021:3496

RHSA-2021:3497

RHSA-2021:3498

RHSA-2021:3499

RHSA-2021:3500

RHSA-2021:3501

RHSA-2021_3494

RHSA-2021_3497

RHSA-2021_3498

RHSA-2021_3499

RLSA-2021:3497

RLSA-2021:3499

SUSE-SU-2021:4150-1

USN-5074-1

USN-5146-1

Affected Products

Alt Linux

Astra Linux

Centos

Firefox

Firefox Esr

Linuxmint

Red Hat

Rocky Linux

Suse

Thunderbird

Ubuntu

References · 2254

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/mistymntncop/CVE-2022-1802 · Exploit
• 🔥 https://github.com/0vercl0k/CVE-2022-28281 · Exploit
• 🔥 https://github.com/mistymntncop/CVE-2022-26485 · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• 🔥❌ https://github.com/Pwnrin/CVE-2022-28282 · Exploit, Deleted
• 🔥❌ https://github.com/MagicPwnrin/CVE-2022-28282 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2022-34471 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-34479 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-26976 · Security Note