CVE-2021-23953
Published: 26 January 2021
If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
Priority
Medium
CVSS 3 base score: 4.3
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
bionic |
Released
(85.0+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(85.0+build1-0ubuntu0.20.04.1)
|
|
| groovy |
Released
(85.0+build1-0ubuntu0.20.10.1)
|
|
| hirsute |
Released
(85.0+build1-0ubuntu1)
|
|
| impish |
Released
(85.0+build1-0ubuntu1)
|
|
| jammy |
Released
(85.0+build1-0ubuntu1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(85)
|
|
| xenial |
Released
(85.0+build1-0ubuntu0.16.04.1)
|
|
|
firefox-esr Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(78.7)
|
|
| xenial |
Does not exist
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs60 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| precise |
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
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| precise |
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
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Needs triage
|
|
| jammy |
Needs triage
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:78.8.1+build1-0ubuntu0.18.04.1)
|
| focal |
Released
(1:78.7.1+build1-0ubuntu0.20.04.1)
|
|
| groovy |
Released
(1:78.7.1+build1-0ubuntu0.20.10.4)
|
|
| hirsute |
Released
(1:78.7.0+build2-0ubuntu1)
|
|
| impish |
Released
(1:78.7.0+build2-0ubuntu1)
|
|
| jammy |
Released
(1:78.7.0+build2-0ubuntu1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(78.7)
|
|
| 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-2021-23953
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/#CVE-2021-23953
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-03/#CVE-2021-23953
- https://ubuntu.com/security/notices/USN-4717-1
- https://ubuntu.com/security/notices/USN-4736-1
- NVD
- Launchpad
- Debian