CVE-2016-9963
medium
CVSS v3
5.9
CVSS v4 NEW
—
VIR risk
5.9
Description
Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.
Predictions
Exploit likelihood
69%
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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 4.88-1 | |
| debian | bookworm | fixed | 4.88~RC6-2 |
| debian | bullseye | fixed | 4.88~RC6-2 |
| debian | forky | fixed | 4.88~RC6-2 |
| debian | sid | fixed | 4.88~RC6-2 |
| debian | trixie | fixed | 4.88~RC6-2 |
| debian | 8.0 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 16.04 | affected | |
| ubuntu | 16.10 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| exim | exim | {"endIncluding":"4.87"} | |
References
- http://www.debian.org/security/2016/dsa-3747
- http://www.exim.org/static/doc/CVE-2016-9963.txt
- http://www.securityfocus.com/bid/94947
- http://www.securitytracker.com/id/1037484
- http://www.ubuntu.com/usn/USN-3164-1
- https://bugs.exim.org/show_bug.cgi?id=1996
- https://security-tracker.debian.org/tracker/CVE-2016-9963
CWEs
CWE-320
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.