CVE-2020-6821
Published: 7 April 2020
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Notes
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
Package | Release | Status |
---|---|---|
mozjs52 Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
impish |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Needs triage
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needs triage
|
|
hirsute |
Does not exist
|
|
jammy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
|
mozjs68 Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
focal |
Needs triage
|
|
jammy |
Does not exist
|
|
bionic |
Does not exist
|
|
eoan |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
|
firefox Launchpad, Ubuntu, Debian |
hirsute |
Released
(75.0+build3-0ubuntu1)
|
impish |
Released
(75.0+build3-0ubuntu1)
|
|
kinetic |
Released
(75.0+build3-0ubuntu1)
|
|
lunar |
Released
(75.0+build3-0ubuntu1)
|
|
bionic |
Released
(75.0+build3-0ubuntu0.18.04.1)
|
|
eoan |
Released
(75.0+build3-0ubuntu0.19.10.1)
|
|
focal |
Released
(75.0+build3-0ubuntu1)
|
|
groovy |
Released
(75.0+build3-0ubuntu1)
|
|
jammy |
Released
(75.0+build3-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(75.0)
|
|
xenial |
Released
(75.0+build3-0ubuntu0.16.04.1)
|
|
mantic |
Released
(75.0+build3-0ubuntu1)
|
|
mozjs38 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
impish |
Does not exist
|
|
groovy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Needs triage
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
jammy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
|
mozjs60 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
impish |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Does not exist
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
jammy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
|
thunderbird Launchpad, Ubuntu, Debian |
hirsute |
Released
(1:68.7.0+build1-0ubuntu1)
|
impish |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
kinetic |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
lunar |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
bionic |
Released
(1:68.7.0+build1-0ubuntu0.18.04.1)
|
|
eoan |
Released
(1:68.7.0+build1-0ubuntu0.19.10.1)
|
|
focal |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
groovy |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
jammy |
Released
(1:68.7.0+build1-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(68.7.0)
|
|
xenial |
Released
(1:68.7.0+build1-0ubuntu0.16.04.2)
|
|
mantic |
Released
(1:68.7.0+build1-0ubuntu1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |