Symantec Mail Security for SMTP libdayzero.dll Executable Parsing DoS

High Nessus Plugin ID 25663


The remote Windows host contains an application that is affected by a denial of service vulnerability.


Symantec Mail Security for SMTP, which provides antispam and antivirus protection for the IIS SMTP Service, is installed on the remote Windows host.

The version of Symantec Mail Security for SMTP installed on the remote host contains boundary errors in its detection of executable packers in 'libdayzero.dll'. Using a specially crafted email message with an executable attachment, a remote attacker may be able to leverage this issue to crash the product's filter hub service (filter-hub.exe) and cause the mail queue to backup.


Upgrade as necessary to Symantec Mail Security for SMTP 5.0.1 and apply patch 181 or later.

See Also

Plugin Details

Severity: High

ID: 25663

File Name: sms_smtp_attach_parsing_dos.nasl

Version: $Revision: 1.18 $

Type: local

Agent: windows

Family: Windows

Published: 2007/07/03

Modified: 2016/11/03

Dependencies: 13855, 10456

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:symantec:mail_security

Required KB Items: SMB/Registry/Enumerated

Exploit Available: false

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2007/06/27

Reference Information

CVE: CVE-2007-1792

BID: 24625

OSVDB: 36110