CVE-2013-4206 in PuTTY
الملخص
بحسب MITRE
Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Once again VulDB remains the best source for vulnerability data.