Description
A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox ESR | unspecified – < 60.2.2 | 60.2.2 |
| Mozilla | Firefox | unspecified – < 62.0.3 | 62.0.3 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firefox-esr | 60.2.2esr-1 | — |
| Debian 13 | firefox-esr | 60.2.2esr-1 | — |
| Debian 12 | firefox-esr | 60.2.2esr-1 | — |
| Debian 9 | firefox-esr | 60.2.2esr-1~deb9u1 | DSA-4310-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | mozjs52 | No fix yet | — |
| Ubuntu 18.04 LTS | firefox | 62.0.3+build1-0ubuntu0.18.04.1 | USN-3778-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu 18.04 LTS | thunderbird | 1:60.4.0+build2-0ubuntu0.18.04.1 | — |
| Ubuntu 16.04 LTS | firefox | 62.0.3+build1-0ubuntu0.16.04.2 | USN-3778-1 |
| Ubuntu 16.04 LTS | thunderbird | 1:60.4.0+build2-0ubuntu0.16.04.1 | — |
| Ubuntu 14.04 LTS | firefox | 62.0.3+build1-0ubuntu0.14.04.2 | USN-3778-1 |
| Ubuntu 14.04 LTS | thunderbird | 1:60.4.0+build2-0ubuntu0.14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | firefox | 60.2.2-1.el7_5 | RHSA-2018:2884 |
| RHEL 6 | firefox | 60.2.2-1.el6 | RHSA-2018:2881 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | MozillaFirefox | 60.2.2-3.13.3 | SUSE-SU-2018:3476-1 |
| SLES 15 | MozillaFirefox-branding-SLE | 60-4.5.3 | SUSE-SU-2018:3476-1 |
| SLES 12 SP4 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-2 |
| SLES 12 SP4 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-2 |
| SLES 12 SP4 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-2 |
| SLES 12 SP4 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-2 |
| SLES 12 SP4 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-2 |
| SLES 12 SP3 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP3 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP3 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES 12 SP3 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP3 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SLES 12 SP2 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP2 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP2 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES 12 SP2 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP2 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SLES 12 SP1 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP1 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP1 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES 12 SP1 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 SP1 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES 12 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES 12 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-2 |
| SLES for SAP 12 SP4 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-2 |
| SLES for SAP 12 SP4 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-2 |
| SLES for SAP 12 SP4 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-2 |
| SLES for SAP 12 SP4 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-2 |
| SLES for SAP 12 SP3 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP3 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP3 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP3 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP3 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP2 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP2 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP2 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP2 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP1 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP1 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP1 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SLES for SAP 12 SP1 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SUSE OpenStack Cloud 7 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SUSE OpenStack Cloud 7 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SUSE OpenStack Cloud 7 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SUSE OpenStack Cloud 7 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SUSE OpenStack Cloud 7 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
| SUSE Enterprise Storage 4 | MozillaFirefox | 60.2.2esr-109.46.1 | SUSE-SU-2018:3591-1 |
| SUSE Enterprise Storage 4 | MozillaFirefox-branding-SLE | 60-32.3.1 | SUSE-SU-2018:3591-1 |
| SUSE Enterprise Storage 4 | apache2-mod_nss | 1.0.14-19.6.3 | SUSE-SU-2018:3591-1 |
| SUSE Enterprise Storage 4 | mozilla-nspr | 4.19-19.3.1 | SUSE-SU-2018:3591-1 |
| SUSE Enterprise Storage 4 | mozilla-nss | 3.36.4-58.15.3 | SUSE-SU-2018:3591-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | firefox | 60.2.2-1.0.1.el7_5 | ELSA-2018-2884 |
Advisories 10
- RHSA-2018:2881 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2018:2884 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-3778-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4310-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3476-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:3591-1 Security update for MozillaFirefox, MozillaFirefox-branding-SLE, llvm4, mozilla-nspr, mozilla-nss, apache2-mod_nss SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:3591-2 Security update for MozillaFirefox, MozillaFirefox-branding-SLE, llvm4, mozilla-nspr, mozilla-nss, apache2-mod_nss SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2018-2884 Critical: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 8, 2018
References
- GLSA-201810-01 vendor-advisory
- 105460 vdb-entry
- USN-3778-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
- DSA-4310 vendor-advisory
- RHSA-2018:2884 vendor-advisory
- 1041770 vdb-entry
- https://www.mozilla.org/security/advisories/mfsa2018-24/
- RHSA-2018:2881 vendor-advisory