CVE-2018-12379
Published: 18 October 2018
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Notes
Author | Note |
---|---|
chrisccoulson | Affects the upstream updater |
Priority
Status
Package | Release | Status |
---|---|---|
firefox Launchpad, Ubuntu, Debian |
upstream |
Released
(62.0)
|
trusty |
Does not exist
(trusty was not-affected)
|
|
xenial |
Not vulnerable
|
|
bionic |
Not vulnerable
|
|
thunderbird Launchpad, Ubuntu, Debian |
upstream |
Released
(60.2.1)
|
trusty |
Does not exist
(trusty was not-affected)
|
|
xenial |
Not vulnerable
|
|
bionic |
Not vulnerable
|
|
firefox-esr Launchpad, Ubuntu, Debian |
upstream |
Released
(60.2.0esr-1)
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
bionic |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12379
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-20/#CVE-2018-12379
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-12379
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/#CVE-2018-12379
- NVD
- Launchpad
- Debian