Description
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.
Problem types
Product status
Timeline
| 2026-01-29: | Reported to Red Hat. |
| 2026-02-09: | Made public. |
References
access.redhat.com/security/cve/CVE-2026-1584
bugzilla.redhat.com/show_bug.cgi?id=2435258 (RHBZ#2435258)