The remote host is missing an update to wmaker announced via advisory DSA 190-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20190-1

Al Viro found a problem in the image handling code use in Window Maker, a popular NEXTSTEP like window manager. When creating an image it would allocate a buffer by multiplying the image width and height, but did not check for an overflow. This makes it possible to overflow the buffer. This could be exploited by using specially crafted image files (for example when previewing themes). This has been fixed in version 0.80.0-4.1.