Memory safety bugs were reported in Firefox 56 and Firefox ESR 52.4. 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 < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-7826 from the MITRE CVE dictionary dictionary and NIST NVD.
| 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 (thunderbird) | RHSA-2017:3372 | 2017-12-04 |
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2017:3247 | 2017-11-17 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2017:3372 | 2017-12-04 |
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2017:3247 | 2017-11-17 |
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