CVE-2019-11757
Published: 22 October 2019
When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. 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 |
|---|---|---|
|
mozjs52 Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
| lunar |
Does not exist
|
|
| bionic |
Needs triage
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needs triage
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
firefox Launchpad, Ubuntu, Debian |
lunar |
Released
(70.0+build2-0ubuntu1)
|
| 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)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(70.0)
|
|
| xenial |
Released
(70.0+build2-0ubuntu0.16.04.1)
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
lunar |
Released
(1:68.2.0+build1.1-0ubuntu1)
|
| 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)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(68.2)
|
|
| xenial |
Released
(1:68.7.0+build1-0ubuntu0.16.04.2)
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
lunar |
Does not exist
|
| 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
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
mozjs60 Launchpad, Ubuntu, Debian |
lunar |
Does not exist
|
| 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
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11757
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11757
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-11757
- https://ubuntu.com/security/notices/USN-4165-1
- https://ubuntu.com/security/notices/USN-4202-1
- https://ubuntu.com/security/notices/USN-4335-1
- NVD
- Launchpad
- Debian