CVE-2017-7791
The MITRE CVE dictionary describes this issue as:
On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over arbitrary domains following page navigation, spoofing of the origin of the modal alert from the iframe content. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Find out more about CVE-2017-7791 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v3 metrics
| CVSS3 Base Score | 9.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Changed |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | None |
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2017:2456 | 2017-08-10 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2017:2534 | 2017-08-24 |
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2017:2456 | 2017-08-10 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2017:2534 | 2017-08-24 |
Acknowledgements
Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jose María Acuña as the original reporter.External References
CVE description copyright © 2017, The MITRE Corporation