Buffer overflow in man and mandb (man-db) 2.4.3 and earlier allows local users to execute arbitrary code via crafted arguments to the -H flag.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33508
http://www.vupen.com/english/advisories/2007/1295
http://www.vupen.com/english/advisories/2007/1294
http://www.novell.com/linux/security/advisories/2007_007_suse.html
http://www.debian.org/security/2007/dsa-1278
http://secunia.com/advisories/24995