CVE-2015-1791: OpenSSL

Medium severity, CVSS 6.8. EPSS: 16.7% chance of exploitation in the next 30 days.

Race condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier.

Affected products

• OpenSSL OpenSSL: up to and including 0.9.8zf; version 1.0.0 only; version 1.0.0a only; version 1.0.0b only; version 1.0.0c only; version 1.0.0d only; …

Published 2015-06-12. Last modified 2026-06-17.