critical
CVE-2016-5257
Mozilla: Memory safety bugs fixed in Firefox ESR 45.4 (MFSA 2016-85, MFSA 2016-86)
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:3.0/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. Rated lower by Oracle (high), Ubuntu (medium).
Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4 and Thunderbird < 45.4 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| debian 11 | firefox-esr | 45.4.0esr-1 |
| debian 12 | firefox-esr | 45.4.0esr-1 |
| debian 13 | firefox-esr | 45.4.0esr-1 |
| debian 14 | firefox-esr | 45.4.0esr-1 |
| debian 7 | firefox-esr, icedove | 45.4.0esr-1~deb7u1 and 1 more |
| debian 8 | firefox-esr, icedove | 45.4.0esr-1~deb8u2 and 1 more |
| echo | firefox-esr | 45.4.0esr-1 |
| Oracle Linux 5 | firefox, thunderbird | 45.4.0-1.0.1.el5_11 |
| Oracle Linux 6 | firefox, thunderbird | 45.4.0-1.0.1.el6_8 |
| Oracle Linux 7 | firefox, thunderbird | 45.4.0-1.0.1.el7_2 |
| ubuntu 12.04 | firefox, thunderbird | 49.0+build4-0ubuntu0.12.04.1 and 1 more |
| ubuntu 14.04 | firefox, thunderbird | 49.0+build4-0ubuntu0.14.04.1 and 1 more |
Show all 23 entries from 14 sources
| Source | Package | Fixed in |
|---|---|---|
| debian 11 | firefox-esr | 45.4.0esr-1 |
| debian 12 | firefox-esr | 45.4.0esr-1 |
| debian 13 | firefox-esr | 45.4.0esr-1 |
| debian 14 | firefox-esr | 45.4.0esr-1 |
| debian 7 | firefox-esr | 45.4.0esr-1~deb7u1 |
| debian 7 | icedove | 1:45.4.0-1~deb7u1 |
| debian 8 | firefox-esr | 45.4.0esr-1~deb8u2 |
| debian 8 | icedove | 1:45.4.0-1~deb8u1 |
| echo | firefox-esr | 45.4.0esr-1 |
| Oracle Linux 5 | firefox | 45.4.0-1.0.1.el5_11 |
| Oracle Linux 5 | thunderbird | 45.4.0-1.0.1.el5_11 |
| Oracle Linux 6 | firefox | 45.4.0-1.0.1.el6_8 |
| Oracle Linux 6 | thunderbird | 45.4.0-1.0.1.el6_8 |
| Oracle Linux 7 | firefox | 45.4.0-1.0.1.el7_2 |
| Oracle Linux 7 | thunderbird | 45.4.0-1.0.1.el7_2 |
| ubuntu 12.04 | firefox | 49.0+build4-0ubuntu0.12.04.1 |
| ubuntu 12.04 | thunderbird | 1:45.4.0+build1-0ubuntu0.12.04.1 |
| ubuntu 14.04 | firefox | 49.0+build4-0ubuntu0.14.04.1 |
| ubuntu 14.04 | thunderbird | 1:45.4.0+build1-0ubuntu0.14.04.1 |
| ubuntu 16.04 | firefox | 49.0+build4-0ubuntu0.16.04.1 |
| ubuntu 16.04 | thunderbird | 1:45.4.0+build1-0ubuntu0.16.04.1 |
| ubuntu 16.10 | firefox | 49.0+build4-0ubuntu2 |
| ubuntu 16.10 | thunderbird | 1:45.4.0+build1-0ubuntu0.16.10.1 |
References
- http://rhn.redhat.com/errata/RHSA-2016-1912.html
- http://rhn.redhat.com/errata/RHSA-2016-1985.html
- http://www.debian.org/security/2016/dsa-3674
- http://www.debian.org/security/2016/dsa-3690
- http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.securityfocus.com/bid/93049
- http://www.securitytracker.com/id/1036852
All 29 references
- https://access.redhat.com/security/cve/CVE-2016-5257
- https://bugzilla.mozilla.org/show_bug.cgi?id=1277213
- https://bugzilla.mozilla.org/show_bug.cgi?id=1287204
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288555
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288588
- https://bugzilla.mozilla.org/show_bug.cgi?id=1288780
- https://bugzilla.mozilla.org/show_bug.cgi?id=1289280
- https://bugzilla.mozilla.org/show_bug.cgi?id=1293347
- https://bugzilla.mozilla.org/show_bug.cgi?id=1294095
- https://bugzilla.mozilla.org/show_bug.cgi?id=1294407
- https://linux.oracle.com/cve/CVE-2016-5257.html
- https://linux.oracle.com/errata/ELSA-2016-1985.html
- https://nvd.nist.gov/vuln/detail/CVE-2016-5257
- https://security.gentoo.org/glsa/201701-15
- https://ubuntu.com/security/notices/USN-3076-1
- https://ubuntu.com/security/notices/USN-3112-1
- https://www.cve.org/CVERecord?id=CVE-2016-5257
- https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/
- https://www.mozilla.org/security/advisories/mfsa2016-85/
- https://www.mozilla.org/security/advisories/mfsa2016-86/
- https://www.mozilla.org/security/advisories/mfsa2016-88/