CVE-2021-43541
Published: 8 December 2021
When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
bionic |
Released
(95.0+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(95.0+build1-0ubuntu0.20.04.1)
|
|
| hirsute |
Released
(95.0+build1-0ubuntu0.21.04.1)
|
|
| impish |
Released
(95.0+build1-0ubuntu0.21.10.1)
|
|
| jammy |
Released
(95.0+build1-0ubuntu1)
|
|
| lunar |
Released
(95.0+build1-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(95)
|
|
| kinetic |
Released
(95.0+build1-0ubuntu1)
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
|
|
firefox-esr Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(91.4.0esr-1)
|
|
| xenial |
Ignored
(end of standard support)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
|
mozjs68 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
|
mozjs78 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| lunar |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| jammy |
Needs triage
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:91.5.0+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(1:91.5.0+build1-0ubuntu0.20.04.1)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Released
(1:91.5.0+build1-0ubuntu0.21.10.1)
|
|
| jammy |
Released
(1:91.4.0+build1-0ubuntu1)
|
|
| lunar |
Released
(1:91.4.0+build1-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(91.4)
|
|
| kinetic |
Released
(1:91.4.0+build1-0ubuntu1)
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43541
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-52/#CVE-2021-43541
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-53/#CVE-2021-43541
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-54/#CVE-2021-43541
- https://ubuntu.com/security/notices/USN-5186-1
- https://ubuntu.com/security/notices/USN-5246-1
- https://ubuntu.com/security/notices/USN-5248-1
- NVD
- Launchpad
- Debian