CVE-2017-7813
Published: 2 October 2017
Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.
Notes
Author | Note |
---|---|
tyhicks |
mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
Package | Release | Status |
---|---|---|
firefox
Launchpad, Ubuntu, Debian |
artful |
Released
(56.0+build6-0ubuntu1)
|
bionic |
Released
(56.0+build6-0ubuntu1)
|
|
cosmic |
Released
(56.0+build6-0ubuntu1)
|
|
disco |
Released
(56.0+build6-0ubuntu1)
|
|
eoan |
Released
(56.0+build6-0ubuntu1)
|
|
focal |
Released
(56.0+build6-0ubuntu1)
|
|
groovy |
Released
(56.0+build6-0ubuntu1)
|
|
hirsute |
Released
(56.0+build6-0ubuntu1)
|
|
impish |
Released
(56.0+build6-0ubuntu1)
|
|
jammy |
Released
(56.0+build6-0ubuntu1)
|
|
kinetic |
Released
(56.0+build6-0ubuntu1)
|
|
lunar |
Released
(56.0+build6-0ubuntu1)
|
|
mantic |
Released
(56.0+build6-0ubuntu1)
|
|
noble |
Released
(56.0+build6-0ubuntu1)
|
|
trusty |
Released
(56.0+build6-0ubuntu0.14.04.1)
|
|
upstream |
Released
(56.0)
|
|
xenial |
Released
(56.0+build6-0ubuntu0.16.04.1)
|
|
zesty |
Released
(56.0+build6-0ubuntu0.17.04.1)
|
|
mozjs38
Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Ignored
|
|
cosmic |
Does not exist
|
|
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
|
|
noble |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Ignored
|
|
xenial |
Does not exist
|
|
zesty |
Ignored
(end of life)
|
|
mozjs52
Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
|
bionic |
Not vulnerable
|
|
cosmic |
Not vulnerable
|
|
disco |
Not vulnerable
|
|
eoan |
Not vulnerable
|
|
focal |
Not vulnerable
|
|
groovy |
Not vulnerable
|
|
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 |
Not vulnerable
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.2 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |