Citadel makeuserkey() buffer overflow
| citadel-makeuserkey-bo (39807) |
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
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