| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | = 31.0= 31.1.0= 31.1.1= 31.3.0= 31.5.1= 31.5.2= 31.5.3= 38.0≤ 38.1.0 | |
| firefox esr | = 31.1= 31.2= 31.3= 31.4= 31.5= 31.6.0= 31.7.0 | |
| thunderbird | ≤ 38.0.1 |
Use-after-free vulnerability in the CSPService::ShouldLoad function in the microtask implementation in Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 allows remote attackers to execute arbitrary code by leveraging client-side JavaScript that triggers removal of a DOM object on the basis of a Content Policy.
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