Desktop 16.1 version 16.1.348 and earlier
InfoConnect Desktop 16.1 version 16.1.348 and earlier
There is an overflow bug in the AVX2 Montgomery multiplication procedure
used in exponentiation with 1024-bit moduli. No EC algorithms are affected.
Analysis suggests that attacks against RSA and DSA as a result of this defect
would be very difficult to perform and are not believed likely. Attacks
against DH1024 are considered just feasible, because most of the work
necessary to deduce information about a private key may be performed offline.
The amount of resources required for such an attack would be significant.
However, for an attack on TLS to be meaningful, the server would have to share
the DH1024 private key among multiple clients, which is no longer an option
This issue is
addressed in Reflection/InfoConnect Desktop 16.1 version 16.1.362 and higher.
For vulnerability details, see the National Vulnerability Database: