CVE-2018-5092
UnknownEPSS 1.84%
Last modified
CVE-2018-5092 is a vulnerability of currently unknown severity. A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of from memory in the main thread while cancelling fetch operations. This vulnerability affects Firefox < 58.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
Description
A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of from memory in the main thread while cancelling fetch operations. This vulnerability affects Firefox < 58.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | <= 57.0.4 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 17.10 |
References
- http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1418074Issue Tracking, Permissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
- http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1418074Issue Tracking, Permissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-5092?
A use-after-free vulnerability can occur when the thread for a Web Worker is freed from memory prematurely instead of from memory in the main thread while cancelling fetch operations. This vulnerability affects Firefox < 58.
How severe is CVE-2018-5092?
Severity scoring for CVE-2018-5092 is pending analysis. The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5092?
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-2018-5092?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST