VIR Vulnerability Intelligence Relay

CVE-2017-11104

medium
Published 2017-07-08 · Modified 2026-05-13
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4 NEW
—
not yet in upstream
VIR risk
5.9

Description

Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.

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 with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
debian debianbookwormfixed2.5.3-1
debian debianbullseyefixed2.5.3-1
debian debianforkyfixed2.5.3-1
debian debiansidfixed2.5.3-1
debian debiantrixiefixed2.5.3-1
debian debian8.0affected
debian debian9.0affected
debian debian10.0affected

Application impact
VendorProductVersionsFixed
knot-dnsknot_dns{"endIncluding":"2.4.4"}
knot-dnsknot_dns2.5.0
knot-dnsknot_dns2.5.1

References

CWEs

CWE-20

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.