Citadel makeuserkey() buffer overflow
| citadel-makeuserkey-bo (39807) |  High Risk |
Description:
Citadel is vulnerable to a buffer overflow, caused by improper bounds checking by the makeuserkey() function. By sending an overly long argument to the "RCPT TO" SMTP command, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- Citadel, SMTP 7.10
Remedy:
Upgrade to the latest version of Citadel (7.24 or later), available from the Citadel Web site. See References.
Consequences:
Gain Access
References:
- Citadel Web site, Citadel at http://lycos.dropcode.net/gregarius/feed.php?channel=1&iid=202875&y=2007&m=06&d=11.
- BID-27376: Citadel SMTP RCPT TO Remote Buffer Overflow Vulnerability
- CVE-2008-0394: Buffer overflow in Citadel SMTP server 7.10 and earlier allows remote attackers to execute arbitrary code via a long RCPT TO command, which is not properly handled by the makeuserkey function. NOTE: some of these details were obtained from third party information.
- FrSIRT/ADV-2008-0252: Citadel SMTP RCPT TO Command Remote Buffer Overflow Vulnerability
- SA28590: Citadel SMTP "makeuserkey()" Buffer Overflow Vulnerability
- SECTRACK ID: 1019255: Citadel Buffer Overflow in SMTP Service Lets Remote Users Execute Arbitrary Code
Reported:
Jan 21, 2008
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net