Libxml2 nanoftp buffer overflow

libxml2-nanoftp-bo (15302) The risk level is classified as HighHigh Risk

Description:

Libxml2 is vulnerable to a buffer overflow in the nanoftp module, caused by improper bounds checking of user-supplied input. By sending a specially-crafted URL request containing more than 4096 bytes, a remote attacker could overflow a buffer and possibly execute arbitrary code on the system.


Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Libxml2 (2.6.6 or later), available from the XML C parser and toolkit of Gnome Web site. See References.

For Red Hat Linux 9:
Upgrade to the latest libxml package (2.5.4-2 or later), as listed in RHSA-2004:091-03. See References.

For Red Hat Linux:
Upgrade to the latest libxml2 package, as listed below. Refer to RHSA-2004:090-06 for more information. See References.

Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), WS (vs. 2.1), and Advanced Workstation 2.1 for the Itanium Processor: 2.4.19-5 or later
Red Hat Enterprise Linux AS (v. 3), ES (v. 3), WS (v. 3): 2.5.10-6 or later

For Red Hat Linux containing the libxml package:
Upgrade to the latest libxml package, as listed below. Refer to RHSA-2004:650-09 for more information. See References.

Red Hat Enterprise Linux AS (v. 2.1), ES (v. 2.1), WS (vs. 2.1), and Advanced Workstation 2.1 for the Itanium Processor: 1.8.14-3 or later
Red Hat Enterprise Linux Red Hat Desktop (v. 3), AS (v. 3), ES (v. 3), WS (v. 3): 1.8.17-9.2 or later.

For Mandrake Linux:
Upgrade to the latest libxml2 package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:018 : libxml2 for more information. See References.

Mandrake Linux 9.1: 2.5.4-1.2.91mdk or later
Mandrake Linux 9.2: 2.5.11-1.2.92mdk or later
Mandrake Linux Corporate Server 2.1: 2.4.23-4.2.C21mdk or later

For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest libxml package (1.8.17-2woody1 or later), as listed in DSA-455-1. See References.

For Gentoo Linux:
Upgrade to the latest version of libxml2 (2.6.6 or later), as listed in GLSA 200403-01. See References.

For OpenPKG:
Upgrade to the latest libxml2 package, as listed below. Refer to OpenPKG Security Advisory OpenPKG-SA-2004.003 for more information. See References.

OpenPKG 1.3: 2.5.8-1.3.1 or later
OpenPKG CURRENT: 2.6.6-20040212 or later

For Conectiva Linux:
Upgrade to the latest libxml2 package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:836 for more information. See References.

Conectiva Linux 8: 2.4.12-3U80_1cl or later
Conectiva Linux 9: 2.5.1-2205OU90_1cl or later

For Turbolinux:
Upgrade to the latest libxml2 package, as listed below. Refer to Turbolinux Security Advisory TLSA-2004-12 for more information. See References.

Turbolinux Appliance Server 1.0 (Hosting and Workgroup Edition): 2.4.22-2 or later
Turbolinux 10 Desktop: 2-2.5.11-2 or later
Turbolinux 8 Server: 2-2.4.22-2 or later
Turbolinux 8 Workstation: 2-2.4.19-2 or later
Turbolinux 7 Server and Workstation: 2-2.4.28-2 or later

For other distributions:
Contact your vendor for upgrade or patch information.

References:

Platforms Affected:

  • Conectiva Linux 8.0
  • Conectiva Linux 9.0
  • Debian Debian Linux 3.0
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 9.1 PPC
  • MandrakeSoft Mandrake Linux 9.1
  • MandrakeSoft Mandrake Linux 9.2 AMD64
  • MandrakeSoft Mandrake Linux 9.2
  • MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 2.1
  • OpenPKG OpenPKG 1.3
  • OpenPKG OpenPKG CURRENT
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 AW
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 WS
  • RedHat Linux 9.0
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • Turbolinux Turbolinux 10 Desktop
  • Turbolinux Turbolinux 7 Server
  • Turbolinux Turbolinux 7 Workstation
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux 8 Workstation
  • Turbolinux Turbolinux Appliance Server 1.0
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
  • XMLsoft Libxml2 prior to 2.6.6

Reported:

Feb 24, 2004

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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