The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.
Severity
High 7.5
Published
16 Sept 2016
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD
Affected software
Software
Affected versions
OpenSSLServers and applications · cpe:a:openssl:openssl