CVE-2019-9792 The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory co...
CriticalCVSS 9.8
EPSS 13.3%
PoC
- Published
- Updated
- Exploit status
- Proof-of-concept only
Description
The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/firefox-esr(Debian:12) | < 60.6.0esr-1 | 60.6.0esr-1 |
| debian/firefox-esr(Debian:13) | < 60.6.0esr-1 | 60.6.0esr-1 |
| debian/firefox-esr(Debian:14) | < 60.6.0esr-1 | 60.6.0esr-1 |
| debian/thunderbird(Debian:12) | < 1:60.6.1-1 | 1:60.6.1-1 |
| debian/thunderbird(Debian:13) | < 1:60.6.1-1 | 1:60.6.1-1 |
| debian/thunderbird(Debian:14) | < 1:60.6.1-1 | 1:60.6.1-1 |
| mozilla Firefox | < 60.6.0 | 60.6.0 |
| mozilla Firefox | < 66.0 | 66.0 |
| mozilla Thunderbird | < 60.6.0 | 60.6.0 |
| redhat enterprise linux | = 8.0 | No fix listed |
| redhat enterprise linux eus | = 8.1 | No fix listed |
| redhat enterprise linux eus | = 8.2 | No fix listed |
| redhat enterprise linux eus | = 8.4 | No fix listed |
| redhat enterprise linux server aus | = 8.2 | No fix listed |
| redhat enterprise linux server aus | = 8.4 | No fix listed |
| redhat enterprise linux server tus | = 8.2 | No fix listed |
| redhat enterprise linux server tus | = 8.4 | No fix listed |
| alpine/firefox-esr(Alpine:v3.10) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.11) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.12) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.13) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.14) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.15) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.16) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.17) | < 60.6.1-r0 | 60.6.1-r0 |
Show 10 more
| Product | Affected versions | Fixed in |
|---|---|---|
| alpine/firefox-esr(Alpine:v3.18) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.19) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.20) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.21) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.22) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.23) | < 60.6.1-r0 | 60.6.1-r0 |
| alpine/firefox-esr(Alpine:v3.9) | < 60.6.1-r0 | 60.6.1-r0 |
| mozilla Thunderbird | < 60.6 | 60.6 |
| mozilla firefox esr | < 60.6 | 60.6 |
| mozilla Firefox | < 66 | 66 |
References
- Debian Security Tracker CVE-2019-9792 vendor-advisory
- packetstormsecurity.com exploit third-party-advisory vdb-entry
- RHSA-2019:0966 third-party-advisory vendor-advisory
- RHSA-2019:1144 third-party-advisory vendor-advisory
- bugzilla.mozilla.org exploit issue-tracking vendor-advisory
- www.mozilla.org vendor-advisory
- www.mozilla.org vendor-advisory
- www.mozilla.org vendor-advisory
- security.alpinelinux.org vendor-advisory