phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

Impact Those using AES in CBC mode may be susceptible to a padding oracle timing attack. Patches https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788 Workarounds Use AES in CTR, CFB or OFB modes References...