CVE-2013-4206

Fixed in a distro release EPSS 2%

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.

Published 2013-08-19 · CVE record · OSV

Products: putty, simon_tatham putty

Distro releases