CVE-2015-1789

La función X509_cmp_time en crypto/x509/x509_vfy.c en OpenSSL anterior a 0.9.8zg, 1.0.0 anterior a 1.0.0s, 1.0.1 anterior a 1.0.1n, y 1.0.2 anterior a 1.0.2b permite a atacantes remotos causar una denegación de servicio (lectura fuera de rango y caída de aplicación) a través de un campo de longitud manipulado en datos ASN1_TIME, tal y como fue demostrado mediante un ataque sobre un servidor que soporta la autenticación de clientes con una rellamada de verificación personalizada.

An out-of-bounds read flaw was found in the X509_cmp_time() function of OpenSSL, which is used to test the expiry dates of SSL/TLS certificates. An attacker could possibly use a specially crafted SSL/TLS certificate or CRL (Certificate Revocation List), which when parsed by an application would cause that application to crash.

Multiple potential security vulnerabilities have been identified in HPE BladeSystem c-Class Virtual Connect (VC) firmware. These vulnerabilities include: The SSLv3 vulnerability known as "Padding Oracle on Downgraded Legacy Encryption" also known as "POODLE", which could be exploited remotely resulting in disclosure of information. The Cross-protocol Attack on TLS using SSLv2 also known as "DROWN", which could be exploited remotely resulting in disclosure of information. Additional OpenSSL and OpenSSH vulnerabilities which could be remotely exploited resulting in Denial of Service (DoS), disclosure of information, or Cross-site Request Forgery (CSRF). Revision 1 of this advisory.