CVE-2020-6798
Published: 11 February 2020
If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but is potentially a risk in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Notes
| Author | Note |
|---|---|
| tyhicks |
mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox
Launchpad, Ubuntu, Debian |
bionic |
Released
(73.0+build3-0ubuntu0.18.04.1)
|
| eoan |
Released
(73.0+build3-0ubuntu0.19.10.1)
|
|
| focal |
Released
(73.0+build3-0ubuntu1)
|
|
| groovy |
Released
(73.0+build3-0ubuntu1)
|
|
| hirsute |
Released
(73.0+build3-0ubuntu1)
|
|
| impish |
Released
(73.0+build3-0ubuntu1)
|
|
| jammy |
Released
(73.0+build3-0ubuntu1)
|
|
| kinetic |
Released
(73.0+build3-0ubuntu1)
|
|
| lunar |
Released
(73.0+build3-0ubuntu1)
|
|
| mantic |
Released
(73.0+build3-0ubuntu1)
|
|
| noble |
Released
(73.0+build3-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(73.0)
|
|
| xenial |
Released
(73.0.1+build1-0ubuntu0.16.04.1)
|
|
|
firefox-esr
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs38
Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
|
|
mozjs52
Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Ignored
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
|
|
mozjs60
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
|
|
thunderbird
Launchpad, Ubuntu, Debian |
bionic |
Released
(1:68.7.0+build1-0ubuntu0.18.04.1)
|
| eoan |
Released
(1:68.7.0+build1-0ubuntu0.19.10.1)
|
|
| focal |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| groovy |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| hirsute |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| impish |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| jammy |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| kinetic |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| lunar |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| mantic |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| noble |
Released
(1:68.5.0+build1-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(68.5.0)
|
|
| xenial |
Released
(1:68.7.0+build1-0ubuntu0.16.04.2)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
References
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-05/#CVE-2020-6798
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-06/#CVE-2020-6798
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-07/#CVE-2020-6798
- https://ubuntu.com/security/notices/USN-4278-1
- https://ubuntu.com/security/notices/USN-4278-2
- https://ubuntu.com/security/notices/USN-4328-1
- https://ubuntu.com/security/notices/USN-4335-1
- https://www.cve.org/CVERecord?id=CVE-2020-6798
- NVD
- Launchpad
- Debian