Pegasus Mail < 4.02 To/From Header Overflow DoS

High Nessus Network Monitor Plugin ID 1303


The remote host is vulnerable to a Denial of Service (DoS) attack.


The remote host is running the Pegasus 4.01 mail client. Pegasus Mail 4.01 (and possibly earlier versions) are vulnerable to a Denial of Service attack caused by a buffer overflow. By sending an email message containing 259 characters or more in either the "From" or "To" message header, a remote attacker can overflow a buffer and crash the system.


Upgrade to Pegasus Mail 4.02 or higher.

Plugin Details

Severity: High

ID: 1303

File Name: 1303.prm

Family: SMTP Clients

Published: 2004/08/20

Modified: 2016/01/19

Dependencies: 1335

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 7.7

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

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


Base Score: 8.1

Temporal Score: 7.5


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Reference Information

CVE: CVE-2002-1075

BID: 5302