critical
CVE-2016-9893
Mozilla: Memory safety bugs fixed in Firefox 50.1 and Firefox ESR 45.6 (MFSA 2016-95)
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
Memory safety bugs were reported in Thunderbird 45.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.4 | firefox-esr | 45.6.0 |
| debian 11 | firefox-esr | 45.6.0esr-1 |
| debian 12 | firefox-esr | 45.6.0esr-1 |
| debian 13 | firefox-esr | 45.6.0esr-1 |
| debian 14 | firefox-esr | 45.6.0esr-1 |
| debian 7 | firefox-esr, icedove | 45.6.0esr-1~deb7u1 and 1 more |
| debian 8 | firefox-esr, icedove | 45.6.0esr-1~deb8u1 and 1 more |
| echo | firefox-esr | 45.6.0esr-1 |
| Oracle Linux 5 | firefox, thunderbird | 45.6.0-1.0.1.el5_11 |
| Oracle Linux 6 | firefox, thunderbird | 45.6.0-1.0.1.el6_8 |
| Oracle Linux 7 | firefox, thunderbird | 45.6.0-1.0.1.el7_3 |
| ubuntu 12.04 | firefox, thunderbird | 50.1.0+build2-0ubuntu0.12.04.1 and 1 more |
Show all 24 entries from 15 sources
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.4 | firefox-esr | 45.6.0 |
| debian 11 | firefox-esr | 45.6.0esr-1 |
| debian 12 | firefox-esr | 45.6.0esr-1 |
| debian 13 | firefox-esr | 45.6.0esr-1 |
| debian 14 | firefox-esr | 45.6.0esr-1 |
| debian 7 | firefox-esr | 45.6.0esr-1~deb7u1 |
| debian 7 | icedove | 1:45.6.0-2~deb7u1 |
| debian 8 | firefox-esr | 45.6.0esr-1~deb8u1 |
| debian 8 | icedove | 1:45.6.0-1~deb8u1 |
| echo | firefox-esr | 45.6.0esr-1 |
| Oracle Linux 5 | firefox | 45.6.0-1.0.1.el5_11 |
| Oracle Linux 5 | thunderbird | 45.6.0-1.0.1.el5_11 |
| Oracle Linux 6 | firefox | 45.6.0-1.0.1.el6_8 |
| Oracle Linux 6 | thunderbird | 45.6.0-1.0.1.el6_8 |
| Oracle Linux 7 | firefox | 45.6.0-1.0.1.el7_3 |
| Oracle Linux 7 | thunderbird | 45.6.0-1.0.1.el7_3 |
| ubuntu 12.04 | firefox | 50.1.0+build2-0ubuntu0.12.04.1 |
| ubuntu 12.04 | thunderbird | 1:45.7.0+build1-0ubuntu0.12.04.1 |
| ubuntu 14.04 | firefox | 50.1.0+build2-0ubuntu0.14.04.1 |
| ubuntu 14.04 | thunderbird | 1:45.7.0+build1-0ubuntu0.14.04.1 |
| ubuntu 16.04 | firefox | 50.1.0+build2-0ubuntu0.16.04.1 |
| ubuntu 16.04 | thunderbird | 1:45.7.0+build1-0ubuntu0.16.04.1 |
| ubuntu 16.10 | firefox | 50.1.0+build2-0ubuntu0.16.10.1 |
| ubuntu 16.10 | thunderbird | 1:45.7.0+build1-0ubuntu0.16.10.1 |
References
- http://rhn.redhat.com/errata/RHSA-2016-2946.html
- http://rhn.redhat.com/errata/RHSA-2016-2973.html
- http://www.securityfocus.com/bid/94885
- http://www.securitytracker.com/id/1037461
- https://access.redhat.com/security/cve/CVE-2016-9893
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1319524%2C1298773%2C1299098%2C1309834%2C1312609%2C1313212%2C1317805%2C1312548%2C1315631%2C1287912
- https://linux.oracle.com/cve/CVE-2016-9893.html
- https://linux.oracle.com/errata/ELSA-2016-2973.html
All 19 references
- https://nvd.nist.gov/vuln/detail/CVE-2016-9893
- https://security.gentoo.org/glsa/201701-15
- https://ubuntu.com/security/notices/USN-3155-1
- https://ubuntu.com/security/notices/USN-3165-1
- https://www.cve.org/CVERecord?id=CVE-2016-9893
- https://www.debian.org/security/2017/dsa-3757
- https://www.mozilla.org/en-US/security/advisories/mfsa2016-94/
- https://www.mozilla.org/security/advisories/mfsa2016-94/
- https://www.mozilla.org/security/advisories/mfsa2016-95/
- https://www.mozilla.org/security/advisories/mfsa2016-96/
- https://www.mozilla.org/security/announce/2016/mfsa2016-95/#CVE-2016-9893