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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
https://psi.secunia.com/

Read more about this new version:
https://psi.secunia.com/?page=changelog

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TITLE:
Citadel SMTP "makeuserkey()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA28590

VERIFY ADVISORY:
http://secunia.com/advisories/28590/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Citadel 7.x
http://secunia.com/product/17268/

DESCRIPTION:
prdelka has discovered a vulnerability in Citadel, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the
"makeuserkey()" function in user_ops.c. This can be exploited to
cause a stack-based buffer overflow via an overly long argument to
the "RCPT TO" SMTP command.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 7.10. Other versions may
also be affected.

SOLUTION:
Update to version 7.24.

PROVIDED AND/OR DISCOVERED BY:
prdelka. Additional information provided by Secunia Research.

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About:
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