PT-2025-3350 · Technitium · Technitium Dns Server

Michael Wedl · Published 2025-02-03 · Updated 2025-02-03 · CVE-2024-56946

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N

Name of the Vulnerable Software and Affected Versions Technitium DNS Server versions <= 13.2.2

Description The issue allows remote attackers to permanently stop the server from accepting new DNS-over-QUIC connections by triggering unhandled exceptions in listener threads. This can lead to a denial of service in DNS-over-QUIC.

Recommendations For Technitium DNS Server versions <= 13.2.2, update to a version higher than 13.2.2 to resolve the issue. As a temporary workaround, consider restricting access to the DNS-over-QUIC functionality until a patch is available.

Fix

DoS

Weakness Enumeration

CWE-248

Related Identifiers

CVE-2024-56946

Affected Products

Technitium Dns Server

References · 6

• https://github.com/TechnitiumSoftware/DnsServer/commit/a7d1cfb6e836798ef9171677bf8919cf99d9dcb0 · Patch
• https://osv.dev/vulnerability/CVE-2024-56946 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56946 · Security Note
• https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-133 · Note
• https://twitter.com/CVEnew/status/1886523336316084377 · Twitter Post
• https://t.me/cvedetector/17113 · Telegram Post