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CVE-2019-11691 A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main…
Description
A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 60.7 | earliest → < 60.7 | 60.7 |
| Firefox 67 | earliest → < 67 | 67 |
| Firefox ESR 60.7 | earliest → < 60.7 | 60.7 |
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