Full Disclosure: MDKSA-2003:080 - Updated wu-ftpd packages fix remote root vulnerability

From: Mandrake Linux Security Team <security_at_linux-mandrake.com>
Date: 31 Jul 2003 17:35:57 -0000

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Mandrake Linux Security Update Advisory
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Package name: wu-ftpd
Advisory ID: MDKSA-2003:080
Date: July 31st, 2003

Affected versions: 8.2
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Problem Description:

A vulnerability was discovered by Janusz Niewiadomski and Wojciech
Purczynski in the wu-ftpd FTP server package. They found an off-by-
one bug in the fb_realpath() function which could be used by a
remote attacker to obtain root privileges on the server. This bug
can only be successfully accomplished by using wu-ftpd binaries
compiled on Linux 2.0.x and later 2.4.x kernels because the 2.2.x
and earlier 2.4.x kernels define PATH_MAX to be 4095 characters.

wu-ftpd is no longer shipped with Mandrake Linux, however Mandrake
Linux 8.2 did come with wu-ftpd. If you use wu-ftpd, you are
encouraged to upgrade to these patched packages.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0466
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Updated Packages:

Mandrake Linux 8.2:
77260fab82a32fd204e29160c11f1e30 8.2/RPMS/wu-ftpd-2.6.2-1.1mdk.i586.rpm
3fd974bd1e718accf048e489dbd52d55 8.2/SRPMS/wu-ftpd-2.6.2-1.1mdk.src.rpm

Mandrake Linux 8.2/PPC:
283cf3a7797ca19c8e83ae22c0415fd5 ppc/8.2/RPMS/wu-ftpd-2.6.2-1.1mdk.ppc.rpm
3fd974bd1e718accf048e489dbd52d55 ppc/8.2/SRPMS/wu-ftpd-2.6.2-1.1mdk.src.rpm
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Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
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To upgrade automatically, use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

A list of FTP mirrors can be obtained from:

http://www.mandrakesecure.net/en/ftp.php

All packages are signed by MandrakeSoft for security. You can obtain
the GPG public key of the Mandrake Linux Security Team by executing:

gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other update advisories for Mandrake Linux at:

http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to. Information on these lists can be obtained by
visiting:

http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

security_linux-mandrake.com

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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_______________________________________________
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Received on Aug 01 2003