ghostexp.exe in Ghost Explorer Utility in Symantec Ghost Solutions Suite (GSS) before 3.0 HF2 12.0.0.8010 and Symantec Deployment Solution (DS) before 7.6 HF4 12.0.0.7045 performs improper sign-extend operations before array-element accesses, which allows remote attackers to execute arbitrary code, cause a denial of service (application crash), or possibly obtain sensitive information via a crafted Ghost image.