CVE ID:	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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2019-9791 https://bugzilla.mozilla.org/show_bug.cgi?id=1530958 https://www.mozilla.org/security/advisories/mfsa2019-07/ https://www.mozilla.org/security/advisories/mfsa2019-08/ https://www.mozilla.org/security/advisories/mfsa2019-11/ RedHat Security Advisories: RHSA-2019:0966 https://access.redhat.com/errata/RHSA-2019:0966 RedHat Security Advisories: RHSA-2019:1144 https://access.redhat.com/errata/RHSA-2019:1144