Fixes a vulnerability in the gmp plugin triggered by crafted certificates with RSA keys with very small moduli. When verifying signatures with such keys, the code patched with the fix for CVE-2018-16151/2 caused an integer underflow and subsequent heap buffer overflow that results in a crash of the daemon. The vulnerability has been registered as CVE-2018-17540. Please refer to our blog for details.
This release contains no other changes, please refer to 5.7.0 for other features and fixes.