Unknown versions of Symantec Norton AntiVirus and Microsoft Outlook allow attackers to cause a denial of service (crash) via malformed e-mail messages (1) without a body or (2) without a carriage return ("\n") separating the headers from the body.

Symantec Norton AntiVirus 2002 and 2003 allows remote attackers to cause a denial of service (CPU consumption) via a compressed archive that contains a large number of directories.

The GUI functionality for an interactive session in Symantec LiveUpdate 1.70.x through 1.90.x, as used in Norton Internet Security 2001 through 2004, SystemWorks 2001 through 2004, and AntiVirus and Norton AntiVirus Pro 2001 through 2004, AntiVirus for Handhelds v3.0, allows local users to gain SYSTEM privileges.

Buffer overflow in Symantec Norton AntiVirus 2002 allows remote attackers to execute arbitrary code via an e-mail attachment with a compressed ZIP file that contains a file with a long filename.

The DeviceIoControl function in the Norton Device Driver (NAVAP.sys) in Symantec Norton AntiVirus 2002 allows local users to gain privileges by overwriting memory locations via certain control codes (aka "Device Driver Attack").

DISPUTED NOTE: this issue has been disputed by the vendor. Symantec Norton AntiVirus 2002 allows remote attackers to send viruses that bypass the e-mail scanning via a NULL character in the MIME header before the virus. NOTE: the vendor has disputed this issue, acknowledging that the initial scan is bypassed, but the AutoProtect feature would detect the virus before it is executed.

DISPUTED NOTE: this issue has been disputed by the vendor. Symantec Norton AntiVirus (NAV) 2002 allows remote attackers to bypass the initial virus scan and cause NAV to prematurely stop scanning by using a non-RFC compliant MIME header. NOTE: the vendor has disputed this issue, acknowledging that the initial scan is bypassed, but the AutoProtect feature would detect the virus before it is executed.

DISPUTED NOTE: this issue has been disputed by the vendor. Symantec Norton AntiVirus (NAV) 2002 allows remote attackers to bypass e-mail scanning via a filename in the Content-Type field with an excluded extension such as .nch or .dbx, but a malicious extension in the Content-Disposition field, which is used by Outlook to obtain the file name. NOTE: the vendor has disputed this issue, acknowledging that the initial scan is bypassed, but Norton AntiVirus or the Office plug-in would detect the virus before it is executed.

DISPUTED NOTE: this issue has been disputed by the vendor. Symantec Norton AntiVirus 2002 allows remote attackers to bypass virus protection via a Word Macro virus with a .nch or .dbx extension, which is automatically recognized and executed as a Microsoft Office document. NOTE: the vendor has disputed this issue, acknowledging that the initial scan is bypassed, but the Office plug-in would detect the virus before it is executed.