sockethandler.cpp in HTTP Antivirus Proxy (HAVP) 0.88 allows remote attackers to cause a denial of service (hang) by connecting to a non-responsive server, which triggers an infinite loop due to an uninitialized variable.

The scanning engine in F-Prot Antivirus 6.2.1 4252 allows remote attackers to cause a denial of service (infinite loop) via a malformed ZIP archive, probably related to invalid offsets.

The files parsing engine in Grisoft AVG Anti-Virus before 8.0.156 allows remote attackers to cause a denial of service (engine crash) via a crafted UPX compressed file, which triggers a divide-by-zero error.

The scanning engine before 4.4.4 in F-Prot Antivirus before 6.0.9.0 allows remote attackers to cause a denial of service (engine crash) via a CHM file with a large nb_dir value that triggers an out-of-bounds read.

Multiple unspecified vulnerabilities in the scanning engine before 4.4.4 in F-Prot Antivirus before 6.0.9.0 allow remote attackers to cause a denial of service via (1) a crafted UPX-compressed file, which triggers an engine crash; (2) a crafted Microsoft Office file, which triggers an infinite loop; or (3) an ASPack-compressed file, which triggers an engine crash.

Rising Antivirus 2008 before 20.38.20 allows local users to cause a denial of service (system crash) via an invalid pointer to the _CLIENT_ID structure in a call to the NtOpenProcess hooked System Service Descriptor Table (SSDT) function.

BitDefender Antivirus 2008 20080118 and earlier allows local users to cause a denial of service (system crash) via an invalid pointer to the CLIENT_ID structure in a call to the NtOpenProcess hooked System Service Descriptor Table (SSDT) function.

The ActiveDataInfo.LaunchProcess method in the SymAData.ActiveDataInfo.1 ActiveX control 2.7.0.1 in SYMADATA.DLL in multiple Symantec Norton products including Norton 360 1.0, AntiVirus 2006 through 2008, Internet Security 2006 through 2008, and System Works 2006 through 2008, does not properly determine the location of the AutoFix Tool, which allows remote attackers to execute arbitrary code via a remote (1) WebDAV or (2) SMB share.

Stack-based buffer overflow in the AutoFix Support Tool ActiveX control 2.7.0.1 in SYMADATA.DLL in multiple Symantec Norton products, including Norton 360 1.0, AntiVirus 2006 through 2008, Internet Security 2006 through 2008, and System Works 2006 through 2008, allows remote attackers to execute arbitrary code via a long argument to the GetEventLogInfo method. NOTE: some of these details are obtained from third party information.

aavmker4.sys in avast! Home and Professional 4.7 for Windows does not properly validate input to IOCTL 0xb2d60030, which allows local users to gain privileges via certain IOCTL requests.