Vulnerability Description
When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 79.0 |
| Mozilla | Firefox Esr | < 78.1 |
| Mozilla | Thunderbird | < 78.1 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1648333Issue TrackingVendor Advisory
- https://usn.ubuntu.com/4443-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-32/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-33/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1648333Issue TrackingVendor Advisory
- https://usn.ubuntu.com/4443-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-32/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-33/Vendor Advisory
FAQ
What is CVE-2020-15654?
CVE-2020-15654 is a vulnerability with a CVSS score of 6.5 (MEDIUM). When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broke...
How severe is CVE-2020-15654?
CVE-2020-15654 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15654?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Canonical Ubuntu Linux.