CVE-2016-5257
critical
CVSS v3
9.8
CVSS v4 NEW
—
VIR risk
9.8
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.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 49.0-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 45.4.0esr-1 |
| sid | Fixed | 49.0-1 |
| forky | Fixed | 45.4.0esr-1 |
| bullseye | Fixed | 45.4.0esr-1 |
| bookworm | Fixed | 45.4.0esr-1 |
References
- https://security.archlinux.org/ASA-201609-22
- 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
- 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://security.gentoo.org/glsa/201701-15
- https://www.mozilla.org/security/advisories/mfsa2016-86/
- https://www.mozilla.org/security/advisories/mfsa2016-88/
- https://security-tracker.debian.org/tracker/CVE-2016-5257
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.