VirtualPC_Services in Microsoft Virtual PC for Mac 6.0 through 6.1 allows local attackers to truncate and overwrite arbitrary files, and execute arbitrary code, via a symlink attack on the VPCServices_Log temporary file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15113
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-005
http://www.securityfocus.com/bid/9632
http://www.ciac.org/ciac/bulletins/o-076.shtml
http://www.atstake.com/research/advisories/2004/a021004-1.txt