DEBIAN-CVE-2026-123584

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Source
https://security-tracker.debian.org/tracker/CVE-2026-123584
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123584.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123584
Upstream
Published
2026-11-08T02:16:52Z
Modified
2026-11-08T16:00:08Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The hickory-net crate in Hickory DNS 0.26.0 before 0.26.2 stops listening and returns an error when a client UDP connection receives a datagram that cannot be parsed as a DNS message. Remote attackers who guess the query's source port, without knowing the transaction ID, can spoof malformed responses to abort client queries, causing denial of service.

References

Affected packages

Debian:14 / rust-hickory-net

Package

Name
rust-hickory-net
Purl
pkg:deb/debian/rust-hickory-net?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.26.3-1

Affected versions

0.*
0.26.1-1
0.26.1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123584.json"