MFSA2019-11 Thunderbird: Security vulnerabilities fixed in Thunderbird 60.6 (CVE-2019-9791)
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.
Solution(s)
- mozilla-thunderbird-upgrade-60_6
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