| Severity |
|
| Remote |
|
| Type |
| + |
Arbitrary code execution |
|
| Description |
| + |
An incorrect handling of __proto__ mutations may lead to type confusion in the IonMonkey JIT code of Firefox before 66.0.1 and Thunderbird before 60.6.1, and can be leveraged for arbitrary memory read and write. |
|
| References |
| + |
https://www.mozilla.org/en-US/security/advisories/mfsa2019-09/#CVE-2019-9813 |
| + |
https://www.mozilla.org/en-US/security/advisories/mfsa2019-12/#CVE-2019-9813 |
| + |
https://bugzilla.mozilla.org/show_bug.cgi?id=1538006 |
|
| Notes |
|