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PuTTY < 0.63 Multiple Vulnerabilities

Medium

Synopsis

The remote host is running a Telnet/SSH client containing multiple potential vulnerabilities.

Description

The remote host is using a vulnerable version of PuTTY or of a PuTTY-based software (eg. PSCP or WinSCP). PuTTY is a Telnet/SSH client built for Linux and UNIX variants as well as Microsoft Windows operating systems. Reportedly PuTTY is affected by a buffer overflow (CVE-2013-4207) that could lead to remote code execution, a buffer underflow (CVE-2013-4206) that can corrupt the heap or cause a denial of service condition, and multiple information disclosure vulnerabilities due to its failure to properly clean the private keys typed by the user from memory during authentication.

Solution

Upgrade to PuTTY 0.63 or higher.