CVE-2020-15656
Published: 29 July 2020
JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Notes
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
Package | Release | Status |
---|---|---|
thunderbird Launchpad, Ubuntu, Debian |
upstream |
Released
(78.1)
|
hirsute |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
impish |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
focal |
Released
(1:78.7.1+build1-0ubuntu0.20.04.1)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
kinetic |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
lunar |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
bionic |
Released
(1:78.8.1+build1-0ubuntu0.18.04.1)
|
|
groovy |
Not vulnerable
(1:78.3.2+build1-0ubuntu1)
|
|
jammy |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
trusty |
Does not exist
|
|
mantic |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
firefox Launchpad, Ubuntu, Debian |
hirsute |
Released
(80.0.1+build1-0ubuntu1)
|
impish |
Released
(80.0.1+build1-0ubuntu1)
|
|
focal |
Released
(79.0+build1-0ubuntu0.20.04.1)
|
|
kinetic |
Released
(80.0.1+build1-0ubuntu1)
|
|
lunar |
Released
(80.0.1+build1-0ubuntu1)
|
|
bionic |
Released
(79.0+build1-0ubuntu0.18.04.1)
|
|
groovy |
Released
(80.0.1+build1-0ubuntu1)
|
|
jammy |
Released
(80.0.1+build1-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(79)
|
|
xenial |
Released
(79.0+build1-0ubuntu0.16.04.2)
|
|
mantic |
Released
(80.0.1+build1-0ubuntu1)
|
|
mozjs38 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
impish |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Needs triage
|
|
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
|
|
mozjs52 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
impish |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Needs triage
|
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
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
|
|
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
|
|
mozjs68 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Does not exist
|
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Does not exist
|
|
jammy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |