CVE-2016-6173
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
NSD before 4.1.11 allows remote DNS master servers to cause a denial of service (/tmp disk consumption and slave server crash) via a zone transfer with unlimited data.
Predictions
Exploit likelihood
83%
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 |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.1.11-1 |
| debian | bullseye | fixed | 4.1.11-1 |
| debian | forky | fixed | 4.1.11-1 |
| debian | sid | fixed | 4.1.11-1 |
| debian | trixie | fixed | 4.1.11-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| nlnetlabs | nsd | {"endIncluding":"4.1.10"} | |
References
- http://www.nlnetlabs.nl/svn/nsd/tags/NSD_4_1_11_REL/doc/RELNOTES
- http://www.openwall.com/lists/oss-security/2016/07/06/3
- http://www.openwall.com/lists/oss-security/2016/07/06/4
- http://www.securityfocus.com/bid/91678
- https://github.com/sischkg/xfer-limit/blob/master/README.md
- https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html
- https://open.nlnetlabs.nl/pipermail/nsd-users/2016-August/002342.html
- https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=790
- https://www.suse.com/security/cve/CVE-2016-6173.html
- https://security-tracker.debian.org/tracker/CVE-2016-6173
CWEs
CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.