Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-12376 from the MITRE CVE dictionary dictionary and NIST NVD.
This flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.
| CVSS3 Base Score | 8.8 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2018:2693 | 2018-09-12 |
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2018:2692 | 2018-09-12 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2018:3458 | 2018-11-05 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2018:3403 | 2018-10-30 |
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