PT-2020-5310 · Mozilla+6 · Firefox+8

Byron Campen · Published 2020-06-30 · Updated 2024-12-12 · CVE-2020-12420

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 78 Firefox ESR versions prior to 68.10 Thunderbird versions prior to 68.10.0

Description A race condition could cause a use-after-free of a pointer when trying to connect to a STUN server, leading to memory corruption and a potentially exploitable crash. This issue may allow a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For Firefox versions prior to 78, update to version 78 or later. For Firefox ESR versions prior to 68.10, update to version 68.10 or later. For Thunderbird versions prior to 68.10.0, update to version 68.10.0 or later.

Exploit

Fix

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

ALT-PU-2020-2309

ALT-PU-2020-2408

ALT-PU-2020-2709

ALT-PU-2020-2933

ALT-PU-2020-2934

ALT-PU-2020-3442

ALT-PU-2021-1368

ALT-PU-2021-1369

ALT-PU-2021-3368

BDU:2021-00076

CESA-2020_2824

CESA-2020_2827

CESA-2020_2828

CESA-2020_3038

CVE-2020-12420

DSA-4713-1

DSA-4718-1

MGASA-2020-0274

MGASA-2020-0300

OPENSUSE-SU-2020:0967-1

OPENSUSE-SU-2020:0982-1

OPENSUSE-SU-2020:0983-1

OPENSUSE-SU-2020:1017-1

OPENSUSE-SU-2020_0967-1

OPENSUSE-SU-2020_0982-1

OPENSUSE-SU-2020_0983-1

OPENSUSE-SU-2020_1017-1

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:10601-1

OPENSUSE-SU-2024:14572-1

RHSA-2020:2824

RHSA-2020:2825

RHSA-2020:2826

RHSA-2020:2827

RHSA-2020:2828

RHSA-2020:2906

RHSA-2020:2907

RHSA-2020:2966

RHSA-2020:3038

RHSA-2020:3046

RHSA-2020_2824

RHSA-2020_2827

RHSA-2020_2828

RHSA-2020_2906

RHSA-2020_2966

RHSA-2020_3038

SUSE-SU-2020:14421-1

SUSE-SU-2020:1898-1

SUSE-SU-2020:1899-1

SUSE-SU-2020:1900-1

USN-4408-1

USN-4421-1

Affected Products

Alt Linux

Centos

Firefox

Firefox Esr

Linuxmint

Red Hat

Suse

Thunderbird

Ubuntu

References · 2052

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/maxpl0it/CVE-2019-17026-Exploit · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/lsw29475/CVE-2019-17026 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥 https://bugzilla.mozilla.org/show_bug.cgi?id=1643437 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2020-12420 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1017-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10601-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-12425 · Vendor Advisory