CVE-2017-5403
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Mozilla Thunderbird
PublishedJun 11, 2018
First seenJun 11, 2018
How to fix
Update
- mozilla thunderbird52.0 or later
- mozilla firefox52.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla thunderbird | v < 52.0 | 52.0 |
| mozilla firefox | v < 52.0 | 52.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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