EUVD-2026-20986
GHSA-92xv-mw29-x4px
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
5DescriptionNVD
A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.
AnalysisAI
Remote unauthenticated attackers can crash GnuTLS servers by sending malformed TLS handshake messages containing invalid Pre-Shared Key binder values, triggering a NULL pointer dereference. Red Hat Enterprise Linux versions 6-10, OpenShift Container Platform 4, and Red Hat Hardened Images are affected. …
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RemediationAI
Within 24 hours: inventory all systems running affected Red Hat Enterprise Linux versions (6-10) and OpenShift Container Platform 4 in your environment. Within 7 days: apply vendor-released patches to non-production systems and validate functionality. …
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