Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 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 8 | icedove | 31.7.0-1~deb8u1 | DSA-3264-1 |
| Debian 8 | iceweasel | 31.7.0esr-1~deb8u1 | DSA-3260-1 |
| Debian 7 | icedove | 31.7.0-1~deb7u1 | DSA-3264-1 |
| Debian 7 | iceweasel | 31.7.0esr-1~deb7u1 | DSA-3260-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | firefox | 38.0+build3-0ubuntu0.14.04.1 | USN-2602-1 |
| Ubuntu 14.04 LTS | thunderbird | 1:31.7.0+build1-0ubuntu0.14.04.1 | USN-2603-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | firefox | 38.0-3.el7_1 | RHSA-2015:0988 |
| RHEL 7 | thunderbird | 31.7.0-1.ael7b_1 | RHSA-2015:1012 |
| RHEL 6 | firefox | 38.0-4.el6_6 | RHSA-2015:0988 |
| RHEL 6 | thunderbird | 31.7.0-1.el6_6 | RHSA-2015:1012 |
| RHEL 5 | firefox | 38.0-4.el5_11 | RHSA-2015:0988 |
| RHEL 5 | thunderbird | 31.7.0-1.el5_11 | RHSA-2015:1012 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 31.7.0-1.el5_11 | RHSA-2015:1012 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | MozillaFirefox | 31.7.0esr-34.1 | SUSE-SU-2015:0960-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | MozillaFirefox | 31.7.0esr-34.1 | SUSE-SU-2015:0960-1 |
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 |
| 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 | 38.0-4.0.1.el6_6 | ELSA-2015-0988 |
| Oracle Linux 7 | thunderbird | 31.7.0-1.0.1.el7_1 | ELSA-2015-1012 |
Advisories 12
- RHSA-2015:0988 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Aug 1, 2026
- RHSA-2015:1012 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-2603-1 thunderbird vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-2602-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3260-1 iceweasel - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3264-1 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
- SUSE-SU-2015:0960-1 Security update for MozillaFirefox 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
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2015-1012 Important: thunderbird security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 19, 2015
- ELSA-2015-0988 Critical: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 13, 2015
References
- USN-2602-1 vendor-advisory
- RHSA-2015:0988 vendor-advisory
- https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#thunderbird31.7
- https://bugzilla.mozilla.org/show_bug.cgi?id=1120655
- openSUSE-SU-2015:0892 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1143299
- DSA-3264 vendor-advisory
- DSA-3260 vendor-advisory
- SUSE-SU-2015:0978 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-46.html
- openSUSE-SU-2015:0934 vendor-advisory
- USN-2603-1 vendor-advisory
- SUSE-SU-2015:0960 vendor-advisory
- RHSA-2015:1012 vendor-advisory
- openSUSE-SU-2015:1266 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1152177
- https://bugzilla.mozilla.org/show_bug.cgi?id=1151139
- GLSA-201605-06 vendor-advisory
- 74615 vdb-entry