CVE Vulnerabilities

CVE-2021-38500

Published: Nov 03, 2021 | Modified: Oct 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.

Affected Software

Name Vendor Start Version End Version
Firefox Mozilla * 93.0 (excluding)
Firefox Mozilla 91.0 (including) 91.2 (excluding)
Firefox_esr Mozilla * 78.15 (excluding)
Thunderbird Mozilla * 78.15 (excluding)
Thunderbird Mozilla 91.0 (including) 91.2 (excluding)
Red Hat Enterprise Linux 7 RedHat firefox-0:91.2.0-4.el7_9 *
Red Hat Enterprise Linux 7 RedHat thunderbird-0:91.2.0-1.el7_9 *
Red Hat Enterprise Linux 8 RedHat firefox-0:91.2.0-4.el8_4 *
Red Hat Enterprise Linux 8 RedHat thunderbird-0:91.2.0-1.el8_4 *
Red Hat Enterprise Linux 8.1 Extended Update Support RedHat firefox-0:91.2.0-4.el8_1 *
Red Hat Enterprise Linux 8.1 Extended Update Support RedHat thunderbird-0:91.2.0-1.el8_1 *
Red Hat Enterprise Linux 8.2 Extended Update Support RedHat firefox-0:91.2.0-4.el8_2 *
Red Hat Enterprise Linux 8.2 Extended Update Support RedHat thunderbird-0:91.2.0-1.el8_2 *
Firefox Ubuntu bionic *
Firefox Ubuntu devel *
Firefox Ubuntu focal *
Firefox Ubuntu hirsute *
Firefox Ubuntu impish *
Firefox Ubuntu jammy *
Firefox Ubuntu kinetic *
Firefox Ubuntu lunar *
Firefox Ubuntu mantic *
Firefox Ubuntu noble *
Firefox Ubuntu trusty *
Firefox Ubuntu upstream *
Firefox Ubuntu xenial *
Mozjs38 Ubuntu bionic *
Mozjs38 Ubuntu esm-apps/bionic *
Mozjs38 Ubuntu upstream *
Mozjs52 Ubuntu bionic *
Mozjs52 Ubuntu esm-apps/focal *
Mozjs52 Ubuntu esm-infra/bionic *
Mozjs52 Ubuntu focal *
Mozjs52 Ubuntu upstream *
Mozjs68 Ubuntu focal *
Mozjs68 Ubuntu upstream *
Mozjs78 Ubuntu esm-apps/jammy *
Mozjs78 Ubuntu hirsute *
Mozjs78 Ubuntu impish *
Mozjs78 Ubuntu jammy *
Mozjs78 Ubuntu kinetic *
Mozjs78 Ubuntu lunar *
Mozjs78 Ubuntu upstream *
Thunderbird Ubuntu bionic *
Thunderbird Ubuntu devel *
Thunderbird Ubuntu focal *
Thunderbird Ubuntu hirsute *
Thunderbird Ubuntu impish *
Thunderbird Ubuntu jammy *
Thunderbird Ubuntu kinetic *
Thunderbird Ubuntu lunar *
Thunderbird Ubuntu mantic *
Thunderbird Ubuntu noble *
Thunderbird Ubuntu trusty *
Thunderbird Ubuntu upstream *
Thunderbird Ubuntu xenial *

References