Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 46.0 and Firefox ESR 45.x before 45.1 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
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 | 45.1.0esr-1 | — |
| Debian 13 | firefox-esr | 45.1.0esr-1 | — |
| Debian 12 | firefox-esr | 45.1.0esr-1 | — |
| Debian 8 | icedove | 1:45.1.0-1~deb8u1 | DSA-3601-1 |
| Debian 7 | icedove | 1:45.1.0-1~deb7u1 | DLA-519-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | firefox | 46.0+build5-0ubuntu0.16.04.2 | USN-2936-1 |
| Ubuntu 14.04 LTS | firefox | 46.0+build5-0ubuntu0.14.04.2 | USN-2936-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | firefox | 45.1.0-1.el7_2 | RHSA-2016:0695 |
| RHEL 6 | firefox | 45.1.0-1.el6_7 | RHSA-2016:0695 |
| RHEL 5 | firefox | 45.1.0-1.el5_11 | RHSA-2016:0695 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 12 | MozillaThunderbird | 45.2-6.1 | openSUSE-SU-2016:1778-1, openSUSE-SU-2016:1769-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | firefox | 45.1.0-1.0.1.el7_2 | ELSA-2016-0695 |
Advisories 9
- RHSA-2016:0695 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2936-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-519-1 icedove - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3601-1 icedove - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10230-1 MozillaThunderbird-45.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2016:1778-1 Security update for Mozilla Thunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2016:1769-1 Security update for Mozilla Thunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2016-0695 Critical: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 26, 2016
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1253099
- https://bugzilla.mozilla.org/show_bug.cgi?id=1242810
- http://www.mozilla.org/security/announce/2016/mfsa2016-39.html
- openSUSE-SU-2016:1211 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1242668
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- RHSA-2016:0695 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1231919
- openSUSE-SU-2016:1767 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1258231
- 1035692 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1255949
- openSUSE-SU-2016:1778 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1254122
- openSUSE-SU-2016:1251 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1260439
- USN-2936-2 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1212328
- https://bugzilla.mozilla.org/show_bug.cgi?id=1238592
- DSA-3601 vendor-advisory
- openSUSE-SU-2016:1769 vendor-advisory
- GLSA-201701-15 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1256065
- https://bugzilla.mozilla.org/show_bug.cgi?id=1228882
- USN-2936-1 vendor-advisory
- USN-2936-3 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1251922