Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

BID:4713

Info

Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

Bugtraq ID: 4713
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: May 10 2002 12:00AM
Updated: May 10 2002 12:00AM
Credit: Discovered by Marcell Fodor <[email protected]>.
Vulnerable: Washington University wu-imapd 2001.0 a
+ HP Secure OS software for Linux 1.0
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Trustix Secure Linux 1.5
+ Trustix Secure Linux 1.2
+ Trustix Secure Linux 1.1
Washington University wu-imapd 2001.0
Washington University wu-imapd 2000.0 c
+ EnGarde Secure Linux 1.0.1
Washington University wu-imapd 2000.0 b
+ MandrakeSoft Corporate Server 1.0.1
+ Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
+ Mandriva Linux Mandrake 7.2
+ Mandriva Linux Mandrake 7.1
Washington University wu-imapd 2000.0 a
Washington University wu-imapd 2000.0
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
Not Vulnerable: Washington University wu-imapd 2002.0 .0a

Discussion

Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

Wu-imapd is vulnerable to a buffer overflow condition. This has been reported to occur when a valid user requests partial mailbox attributes. Exploitation may result in the execution of arbitrary code as the server process. An attacker may also be able to crash the server, resulting in a denial of service condition.

This only affects versions of imapd with legacy RFC 1730 support, which is disabled by default in imapd 2001.313 and imap-2001.315.

Exploit / POC

Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

Exploit code is available:

Solution / Fix

Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

Solution:
Washington University has provided a patch. To see if you are running a vulnerable version of imap, run imap and give the command "x capability". Vulnerable versions display "IMAP4" as the first word after "COMPATIBILITY" - all others are not vulnerable.

HP has recommended applying the available fixes for Red Hat Linux to HP Secure OS 1.0.

Vendor fixes:


Washington University wu-imapd 2000.0 a

Washington University wu-imapd 2000.0 c

Washington University wu-imapd 2000.0 b

Washington University wu-imapd 2000.0

Washington University wu-imapd 2001.0

Washington University wu-imapd 2001.0 a

References

Wu-imapd Partial Mailbox Attribute Remote Buffer Overflow Vulnerability

References:

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