openssl SubjectAlternativeName and ExtendedKeyUsage::other allow arbitrary file read
SubjectAlternativeName and ExtendedKeyUsage arguments were parsed using the OpenSSL
function X509V3_EXT_nconf. This function parses all input using an OpenSSL mini-language
which can perform arbitrary file reads.
Thanks to David Benjamin (Google) for reporting this issue.
See advisory page for additional details.