A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-7749 from the MITRE CVE dictionary dictionary and NIST NVD.
Base Score | 5.1 |
---|---|
Base Metrics | AV:N/AC:H/Au:N/C:P/I:P/A:P |
Access Vector | Network |
Access Complexity | High |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
CVSS3 Base Score | 5.6 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
Attack Vector | Network |
Attack Complexity | High |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity Impact | Low |
Availability Impact | Low |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Errata | Release Date |
---|---|---|
Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2017:1561 | 2017-06-21 |
Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2017:1561 | 2017-06-21 |
Red Hat Enterprise Linux 6 (firefox) | RHSA-2017:1440 | 2017-06-14 |
Red Hat Enterprise Linux 7 (firefox) | RHSA-2017:1440 | 2017-06-14 |