CVE-2015-3216: OpenSSL

Medium severity, CVSS 4.3. EPSS: 4.3% chance of exploitation in the next 30 days.

Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay_rand_bytes function in OpenSSL, as distributed in openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux (RHEL) 7 and other products, allows remote attackers to cause a denial of service (application crash) by establishing many TLS sessions to a multithreaded server, leading to use of a negative value for a certain length field.

Affected products

  • OpenSSL OpenSSL: version 1.0.1e-25.el7 only
  • Red Hat Enterprise Linux: version 7.0 only

Published 2015-07-07. Last modified 2026-06-17.