EUVD-2026-30769
GHSA-9gx7-g5hv-xjjj
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.
AnalysisAI
Denial of service in GnuTLS affects the Datagram Transport Layer Security (DTLS) packet reordering logic, where the comparator function fails to correctly handle packets with duplicate sequence numbers. Remote unauthenticated attackers can send specially crafted DTLS packet sequences to trigger unstable ordering or undefined behavior, causing service disruption. …
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RemediationAI
Within 24 hours: Conduct inventory of systems and applications using GnuTLS, prioritizing those with DTLS services exposed to untrusted networks. Within 7 days: Implement network-level rate limiting and firewall rules restricting DTLS traffic to trusted sources; contact GnuTLS project for patch availability timeline. …
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