FreeBSD Security Advisory – OpenSSL Issues

FreeBSD Security Advisory – Multiple OpenSSL issues have been resolved. A malformed elliptic curve private key file could cause a use-after-free condition in the d2i_ECPrivateKey function. An attempt to compare ASN.1 boolean types will cause the ASN1_TYPE_cmp function to crash with an invalid read. Reusing a structure in ASN.1 parsing may allow an attacker to cause memory corruption via an invalid write. The function X509_to_X509_REQ will crash with a NULL pointer dereference if the certificate key is invalid. The PKCS#7 parsing code does not handle missing outer ContentInfo correctly. A malicious client can trigger an OPENSSL_assert in servers that both support SSLv2 and enable export cipher suites by sending a specially crafted SSLv2 CLIENT-MASTER-KEY message.

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