OpenSSL (IBB): X509_to_X509_REQ NULL pointer deref

ID H1:73236
Type hackerone
Reporter geeknik
Modified 2015-03-15T00:00:00


X509_to_X509_REQ NULL pointer deref (CVE-2015-0288)

Severity: Low

The function X509_to_X509_REQ will crash with a NULL pointer dereference if the certificate key is invalid. This function is rarely used in practice.

This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8.

OpenSSL 1.0.2 users should upgrade to 1.0.2a OpenSSL 1.0.1 users should upgrade to 1.0.1m. OpenSSL 1.0.0 users should upgrade to 1.0.0r. OpenSSL 0.9.8 users should upgrade to 0.9.8zf.

This issue was discovered by Brian Carpenter and a fix developed by Stephen Henson of the OpenSSL development team.