Vulnerability Description
When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 52 and Thunderbird < 52.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | < 52.0 |
| Mozilla | Firefox | < 52.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/96691Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037966Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340186Issue TrackingVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
- http://www.securityfocus.com/bid/96691Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037966Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340186Issue TrackingVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
FAQ
What is CVE-2017-5403?
CVE-2017-5403 is a vulnerability with a CVSS score of 9.8 (CRITICAL). When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash...
How severe is CVE-2017-5403?
CVE-2017-5403 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-5403?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Thunderbird, Mozilla Firefox.