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CVE-2019-9791

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CVE-2019-9791

Published: Apr 26, 2019

Modified: Aug 4, 2024

PUBLISHED

Description

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

VendorProductVersions

Mozilla

Thunderbird

affected
unspecified - < 60.6

Mozilla

Firefox ESR

affected
unspecified - < 60.6

Mozilla

Firefox

affected
unspecified - < 66

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