CVE-2017-7793
The MITRE CVE dictionary describes this issue as:
A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Find out more about CVE-2017-7793 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v3 metrics
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2017:2831 | 2017-09-28 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2017:2885 | 2017-10-11 |
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2017:2831 | 2017-09-28 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2017:2885 | 2017-10-11 |
Acknowledgements
Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Abhishek Arya as the original reporter.External References
CVE description copyright © 2017, The MITRE Corporation