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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-9791
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-9791.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201903-11
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 66.0-1 | |
| sles | affected | | |
| debian | sid | fixed | 66.0-1 |
| debian | bookworm | fixed | 60.6.0esr-1 |
| debian | bullseye | fixed | 60.6.0esr-1 |
| debian | forky | fixed | 60.6.0esr-1 |
| debian | trixie | fixed | 60.6.0esr-1 |
References
Verify integrity in audit chain (admin only). AS-IS.