Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2003.0527 -- Debian Security Advisory DSA-357-1
New wu-ftpd packages fix buffer overflow
01 August 2003
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: wu-ftpd
Publisher: Debian
Operating System: Debian GNU/Linux 3.0
Impact: Root Compromise
Access Required: Remote
CVE Names: CAN-2003-0466
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
- - ------------------------------------------------------------------------
Debian Security Advisory 357-1 security@debian.org
http://www.debian.org/security/ Michael Stone
July 31, 2003 http://www.debian.org/security/faq
- - ------------------------------------------------------------------------
Package : wu-ftpd
Vulnerability : buffer overflow
Problem type : remote root exploit
Debian-specific: no
CVE Id(s) : CAN-2003-0466
iSEC Security Research reports that wu-ftpd contains an off-by-one bug
in the fb_realpath function which could be exploited by a logged-in user
(local or anonymous) to gain root privileges. A demonstration exploit is
reportedly available.
For the current stable distribution (woody) this problem has been fixed
in version 2.6.2-3woody1.
For the unstable distribution (sid) an update will be available shortly.
We recommend you upgrade your wu-ftpd package immediately.
Upgrade instructions
- - --------------------
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian 3.0 (stable)
- - -------------------
Stable was released for alpha, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390 and sparc.
Source archives:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2.orig.tar.gz
Size/MD5 checksum: 354784 b3c271f02aadf663b8811d1bff9da3f6
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1.dsc
Size/MD5 checksum: 713 0e7285b9fd050b4e8a30aa21d62f44d8
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1.diff.gz
Size/MD5 checksum: 99967 88c990894af29cce4d14ee6822069542
Architecture independent packages:
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd-academ_2.6.2-3woody1_all.deb
Size/MD5 checksum: 3476 79da608623ce421a11c568e97565f537
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_alpha.deb
Size/MD5 checksum: 291540 20b379bd4495f8d810cc75f4188e0f94
arm architecture (ARM)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_arm.deb
Size/MD5 checksum: 265158 f5d590b10861f6f355d40d501cf35e75
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_hppa.deb
Size/MD5 checksum: 275684 4cc9e3eb212401091d4f51ddf54dd771
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_i386.deb
Size/MD5 checksum: 255102 f79202c825c979fafd8de828401a8179
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_ia64.deb
Size/MD5 checksum: 321168 30d2ce430f8ae75eabf76d9f2427f6cb
m68k architecture (Motorola Mc680x0)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_m68k.deb
Size/MD5 checksum: 249258 79367429ca9b917c99db373c205da8f8
mips architecture (MIPS (Big Endian))
Not yet available.
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_mipsel.deb
Size/MD5 checksum: 272916 ec410054275c42450c6eb983cfc3e6e6
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_powerpc.deb
Size/MD5 checksum: 268236 3e1954b334be827bdbbf43edb2336978
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_s390.deb
Size/MD5 checksum: 262914 448c89adf5f1eabfafa9b944719d34ba
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody1_sparc.deb
Size/MD5 checksum: 270306 5d5126fbaf637dffc0224b5a9e402cd1
- - -------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)
iQCVAwUBPymORg0hVr09l8FJAQFEDwQAv0fIMiermzZcUVlcQO+98bPm0axQIddy
Q4RKp4EKZCfIErYqqkq0A4LIl58hzJ12H/56wBBSRlb+/cNcwb/0MTPz0cWhX62X
T5pXG3ybGhCOgqnu8rKjPhWf65V0S+knx5hdOItpluGZWmKWQKDHmBrRjl28iyU0
j6QKq4EKzPc=
=paUO
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business
hours which are GMT+10:00 (AEST). On call after hours
for member emergencies only.
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBPym1zyh9+71yA2DNAQGvGgP/X6H5G4dKs28RM0xoWCoLs0A+DTm9PMDz
v/2pOXzCUcSPIsDOg8fXzRogB8kLkrJnWObCqbnSSz2NhgZHb0W73/oH1cD1T7wg
PiCN9HhHHf9usPgFTqetsP/6JvARsuu9SoOVNWLyfp8mFj650CppTeozr/NfnVdL
DUwW40zK7x0=
=Gi1M
-----END PGP SIGNATURE-----