CVE-2021-29987
Published: 11 August 2021
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Priority
Medium
CVSS 3 base score: 6.5
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
bionic |
Released
(91.0+build2-0ubuntu0.18.04.1)
|
| focal |
Released
(91.0+build2-0ubuntu0.20.04.1)
|
|
| hirsute |
Released
(91.0+build2-0ubuntu0.21.04.1)
|
|
| impish |
Released
(91.0+build2-0ubuntu1)
|
|
| jammy |
Released
(91.0+build2-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(91)
|
|
| xenial |
Needed
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs68 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs78 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Needs triage
|
|
| jammy |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
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
(reached end-of-life)
|
|
| impish |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
| jammy |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(91)
|
|
| xenial |
Needed
|
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29987
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-33/#CVE-2021-29987
- https://ubuntu.com/security/notices/USN-5037-1
- https://ubuntu.com/security/notices/USN-5248-1
- NVD
- Launchpad
- Debian