critical
CVE-2019-9792
Mozilla: IonMonkey leaks JS_OPTIMIZED_OUT magic value to script
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, Red Hat, Amazon. Rated lower by Oracle (high), Ubuntu (medium).
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 packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| amazon linux 2 | thunderbird, thunderbird-debuginfo | 60.6.1-1.amzn2.0.1 |
| alpine 3.10 | firefox-esr | 60.6.1-r0 |
| alpine 3.11 | firefox-esr | 60.6.1-r0 |
| alpine 3.12 | firefox-esr | 60.6.1-r0 |
| alpine 3.13 | firefox-esr | 60.6.1-r0 |
| alpine 3.14 | firefox-esr | 60.6.1-r0 |
| alpine 3.15 | firefox-esr | 60.6.1-r0 |
| alpine 3.16 | firefox-esr | 60.6.1-r0 |
| alpine 3.17 | firefox-esr | 60.6.1-r0 |
| alpine 3.18 | firefox-esr | 60.6.1-r0 |
| alpine 3.19 | firefox-esr | 60.6.1-r0 |
| alpine 3.20 | firefox-esr | 60.6.1-r0 |
Show all 67 entries from 41 sources
| Source | Package | Fixed in |
|---|---|---|
| amazon linux 2 | thunderbird | 60.6.1-1.amzn2.0.1 |
| amazon linux 2 | thunderbird-debuginfo | 60.6.1-1.amzn2.0.1 |
| alpine 3.10 | firefox-esr | 60.6.1-r0 |
| alpine 3.11 | firefox-esr | 60.6.1-r0 |
| alpine 3.12 | firefox-esr | 60.6.1-r0 |
| alpine 3.13 | firefox-esr | 60.6.1-r0 |
| alpine 3.14 | firefox-esr | 60.6.1-r0 |
| alpine 3.15 | firefox-esr | 60.6.1-r0 |
| alpine 3.16 | firefox-esr | 60.6.1-r0 |
| alpine 3.17 | firefox-esr | 60.6.1-r0 |
| alpine 3.18 | firefox-esr | 60.6.1-r0 |
| alpine 3.19 | firefox-esr | 60.6.1-r0 |
| alpine 3.20 | firefox-esr | 60.6.1-r0 |
| alpine 3.21 | firefox-esr | 60.6.1-r0 |
| alpine 3.22 | firefox-esr | 60.6.1-r0 |
| alpine 3.23 | firefox-esr | 60.6.1-r0 |
| alpine 3.9 | firefox-esr | 60.6.1-r0 |
| debian 11 | firefox-esr | 60.6.0esr-1 |
| debian 11 | thunderbird | 1:60.6.1-1 |
| debian 12 | firefox-esr | 60.6.0esr-1 |
| debian 12 | thunderbird | 1:60.6.1-1 |
| debian 13 | firefox-esr | 60.6.0esr-1 |
| debian 13 | thunderbird | 1:60.6.1-1 |
| debian 14 | firefox-esr | 60.6.0esr-1 |
| debian 14 | thunderbird | 1:60.6.1-1 |
| debian 8 | firefox-esr | 60.6.0esr-1~deb8u1 |
| debian 8 | thunderbird | 1:60.6.1-1~deb8u1 |
| debian 9 | firefox-esr | 60.6.0esr-1~deb9u1 |
| debian 9 | thunderbird | 1:60.6.1-1~deb9u1 |
| echo | firefox-esr | 60.6.0esr-1 |
| echo | thunderbird | 1:60.6.1-1 |
| Oracle Linux 6 | firefox | 60.6.0-3.0.1.el6_10 |
| Oracle Linux 6 | thunderbird | 60.6.1-1.0.1.el6_10 |
| Oracle Linux 7 | firefox | 60.6.0-3.0.1.el7_6 |
| Oracle Linux 7 | thunderbird | 60.6.1-1.0.1.el7_6 |
| Oracle Linux 8 | firefox | 60.6.1-1.0.2.el8 |
| Oracle Linux 8 | thunderbird | 60.6.1-1.0.1.el8 |
| ubuntu 14.04 | firefox | 66.0.1+build1-0ubuntu0.14.04.1 |
| ubuntu 14.04 | thunderbird | 1:60.6.1+build2-0ubuntu0.14.04.1 |
| ubuntu 16.04 | firefox | 66.0+build3-0ubuntu0.16.04.2 |
| ubuntu 16.04 | thunderbird | 1:60.6.1+build2-0ubuntu0.16.04.1 |
| ubuntu 18.04 | firefox | 66.0+build3-0ubuntu0.18.04.1 |
| ubuntu 18.04 | thunderbird | 1:60.6.1+build2-0ubuntu0.18.04.1 |
| ubuntu 18.10 | firefox | 66.0+build3-0ubuntu0.18.10.1 |
| ubuntu 18.10 | thunderbird | 1:60.6.1+build2-0ubuntu0.18.10.1 |
| ubuntu 19.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 19.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 19.10 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 19.10 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 20.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 20.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 20.10 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 20.10 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 21.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 21.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 21.10 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 21.10 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 22.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 22.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 22.10 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 22.10 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 23.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 23.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 23.10 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 23.10 | thunderbird | 60.6.1+build2-0ubuntu1 |
| ubuntu 24.04 | firefox | 66.0+build3-0ubuntu1 |
| ubuntu 24.04 | thunderbird | 60.6.1+build2-0ubuntu1 |
References
- http://packetstormsecurity.com/files/153106/Spidermonkey-IonMonkey-JS_OPTIMIZED_OUT-Value-Leak.html
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://access.redhat.com/security/cve/CVE-2019-9792
- https://bugzilla.mozilla.org/show_bug.cgi?id=1532599
- https://linux.oracle.com/cve/CVE-2019-9792.html
- https://linux.oracle.com/errata/ELSA-2019-1144.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-9792
All 18 references
- https://ubuntu.com/security/notices/USN-3918-1
- https://ubuntu.com/security/notices/USN-3918-2
- https://ubuntu.com/security/notices/USN-3927-1
- https://www.cve.org/CVERecord?id=CVE-2019-9792
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9792
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9792
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9792
- https://www.mozilla.org/security/advisories/mfsa2019-07/
- https://www.mozilla.org/security/advisories/mfsa2019-08/
- https://www.mozilla.org/security/advisories/mfsa2019-11/