CVE-2019-11763
Published: 23 October 2019
Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
Notes
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
Package | Release | Status |
---|---|---|
firefox Launchpad, Ubuntu, Debian |
bionic |
Released
(70.0+build2-0ubuntu0.18.04.1)
|
disco |
Released
(70.0+build2-0ubuntu0.19.04.1)
|
|
eoan |
Released
(70.0+build2-0ubuntu0.19.10.1)
|
|
focal |
Released
(70.0+build2-0ubuntu1)
|
|
groovy |
Released
(70.0+build2-0ubuntu1)
|
|
hirsute |
Released
(70.0+build2-0ubuntu1)
|
|
impish |
Released
(70.0+build2-0ubuntu1)
|
|
jammy |
Released
(70.0+build2-0ubuntu1)
|
|
kinetic |
Released
(70.0+build2-0ubuntu1)
|
|
lunar |
Released
(70.0+build2-0ubuntu1)
|
|
mantic |
Released
(70.0+build2-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(70.0)
|
|
xenial |
Released
(70.0+build2-0ubuntu0.16.04.1)
|
|
mozjs38 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
disco |
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
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needs triage
|
|
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
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mozjs60 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Ignored
(end of life)
|
|
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
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:68.2.1+build1-0ubuntu0.18.04.1)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(1:68.2.1+build1-0ubuntu0.19.10.1)
|
|
focal |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
groovy |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
hirsute |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
impish |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
jammy |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
kinetic |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
lunar |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
mantic |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(68.2)
|
|
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 |