CVE-2017-7756
UnknownEPSS 2.67%
Last modified
CVE-2017-7756 is a vulnerability of currently unknown severity. A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. EPSS estimates a 2.67% chance of exploitation in the next 30 days.
Description
A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 52.2.0 |
| Mozilla | Firefox | < 54.0 |
| Mozilla | Thunderbird | < 52.2.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://www.securityfocus.com/bid/99057Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038689Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1440Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1561Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1366595Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3881Third Party Advisory
- https://www.debian.org/security/2017/dsa-3918Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-17/Vendor Advisory
- http://www.securityfocus.com/bid/99057Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038689Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1440Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1561Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1366595Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3881Third Party Advisory
- https://www.debian.org/security/2017/dsa-3918Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-17/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-7756?
A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
How severe is CVE-2017-7756?
Severity scoring for CVE-2017-7756 is pending analysis. The EPSS model estimates a 2.67% probability of exploitation in the next 30 days.
How do I fix CVE-2017-7756?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-7756?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST