PT-2021-7392 · Mozilla+7 · Firefox Esr+9

Alexis Beingessner + 3 · Published 2021-03-23 · Updated 2024-12-12 · CVE-2021-23987

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 87 Firefox ESR versions prior to 78.9 Thunderbird versions prior to 78.9

Description The issue is related to memory safety bugs and buffer copying without checking the size of input data, which could potentially allow an attacker to execute arbitrary code using a specially crafted website. Some of these bugs showed evidence of memory corruption.

Recommendations For Firefox versions prior to 87, update to version 87 or later. For Firefox ESR versions prior to 78.9, update to version 78.9 or later. For Thunderbird versions prior to 78.9, update to version 78.9 or later.

Exploit

Fix

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-120

CWE-787

Related Identifiers

ALT-PU-2021-1543

ALT-PU-2021-1549

ALT-PU-2021-1562

ALT-PU-2021-1564

ALT-PU-2021-1804

ALT-PU-2021-1886

ALT-PU-2021-1892

ALT-PU-2021-2725

ALT-PU-2021-2881

ALT-PU-2021-3368

ALT-PU-2021-3369

ALT-PU-2022-1781

ALT-PU-2022-1782

BDU:2022-05942

CESA-2021_0990

CESA-2021_0992

CESA-2021_0993

CESA-2021_0996

CVE-2021-23987

DLA-2607-1

DLA-2609-1

DSA-4874-1

DSA-4876-1

MGASA-2021-0163

MGASA-2021-0164

OESA-2023-1673

OESA-2023-1674

OPENSUSE-SU-2021:0487-1

OPENSUSE-SU-2021:0580-1

OPENSUSE-SU-2021_0487-1

OPENSUSE-SU-2021_0580-1

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:10601-1

OPENSUSE-SU-2024:14572-1

RHSA-2021:0989

RHSA-2021:0990

RHSA-2021:0991

RHSA-2021:0992

RHSA-2021:0993

RHSA-2021:0994

RHSA-2021:0995

RHSA-2021:0996

RHSA-2021_0990

RHSA-2021_0992

RHSA-2021_0993

RHSA-2021_0996

SUSE-SU-2021:0966-1

SUSE-SU-2021:0999-1

SUSE-SU-2021:1007-1

SUSE-SU-2021:1167-1

SUSE-SU-2021:14684-1

SUSE-SU-2021_14684-1

USN-4893-1

USN-4995-1

USN-4995-2

Affected Products

Alt Linux

Astra Linux

Centos

Firefox

Firefox Esr

Linuxmint

Red Hat

Suse

Thunderbird

Ubuntu

References · 2344

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/mistymntncop/CVE-2022-26485 · 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://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
• https://nvd.nist.gov/vuln/detail/CVE-2023-4047 · Security Note
• https://ubuntu.com/security/CVE-2021-23984 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-38473 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-28289 · Security Note