critical
CVE-2019-9791
Mozilla: Type inference is incorrect for constructors entered through on-stack replacement with IonMonkey
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 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.
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
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://access.redhat.com/security/cve/CVE-2019-9791
- https://bugzilla.mozilla.org/show_bug.cgi?id=1530958
- https://linux.oracle.com/cve/CVE-2019-9791.html
- https://linux.oracle.com/errata/ELSA-2019-1144.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-9791
- https://ubuntu.com/security/notices/USN-3918-1
All 17 references
- https://ubuntu.com/security/notices/USN-3918-2
- https://ubuntu.com/security/notices/USN-3927-1
- https://www.cve.org/CVERecord?id=CVE-2019-9791
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9791
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9791
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9791
- https://www.mozilla.org/security/advisories/mfsa2019-07/
- https://www.mozilla.org/security/advisories/mfsa2019-08/
- https://www.mozilla.org/security/advisories/mfsa2019-11/