Problem Description
The function ASN1_STRING_print_ex does not properly validate
the lengths of BMPString or UniversalString objects before
attempting to print them.
Impact
An application which attempts to print a BMPString or
UniversalString which has an invalid length will crash as a
result of OpenSSL accessing invalid memory locations. This
could be used by an attacker to crash a remote application.
Workaround
No workaround is available, but applications which do not use
the ASN1_STRING_print_ex function (either directly or indirectly)
are not affected.