vulnerability
MFSA2019-08 Firefox: Security vulnerabilities fixed in Firefox ESR 60.6 (CVE-2019-9791)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Mar 19, 2019 | Mar 20, 2019 | Feb 10, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 19, 2019
Added
Mar 20, 2019
Modified
Feb 10, 2026
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
mozilla-firefox-esr-upgrade-60_6
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