nfs-utils off-by-one buffer overflow

nfs-utils-offbyone-bo (12600) The risk level is classified as MediumMedium Risk

Description:

nfs-utils is vulnerable to a buffer overflow, caused by an off-by-one error in the xlog function. A remote or local attacker could send a specially-crafted RPC (Remote Procedure Call) request to the rpc.mountd daemon to overflow a buffer and cause the daemon to crash. It is unknown whether this vulnerability can be exploited to execute arbitrary code on the system.


Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of nfs-utils (1.0.4 or later), available from the NFS Web page. See References.

For Red Hat Linux:
Upgrade to the latest nfs-utils package, as listed below. Refer to Red Hat Linux Security Advisory RHSA-2003:206-05 for more information. See References.

Red Hat 7.1: 0.3.1-6.71 or later
Red Hat 7.2: 0.3.1-14.72 or later
Red Hat 7.3: 0.3.3-6.73 or later
Red Hat 8.0: 1.0.1-2.80 or later
Red Hat 9.0: 1.0.1-3.9 or later

For Red Hat Linux containing the nfs-utils package:
Upgrade to the latest nfs-utils package, as listed below. Refer to RHSA-2003:207-05 for more information. See References.

Red Hat Enterprise Linux AS (v. 2.1), ES (v.2.1), WS (v.2.1), and Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor: 0.3.3-7.21AS or later

For Red Hat Linux:
Upgrade to the latest nfs-utils package, as listed below. Refer to RHSA-2003:206-08 for more information. See References.

Red Hat 7.1 for iSeries and pSeries: 0.3.1-6.71 or later
Red Hat 7.2: 0.3.1-14.72 or later
Red Hat 7.3: 0.3.3-6.73 or later
Red Hat 8.0: 1.0.1-2.80 or later
Red Hat 9: 1.0.1-3.9 or later

For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest nfs-utils package (nfs-utils_1.0-2woody1 or later), as listed in DSA 349-1. See References.

For SuSE Linux:
Upgrade to the latest nfs-utils package, as listed below. Refer to SuSE Security Announcement SuSE-SA:2003:031 for more information. See References.

SuSE 8.2, 8.1 (Intel): 1.0.1-109 or later
SuSE 8.0 (Intel): 0.3.3-178 or later
SuSE 7.3 (Intel): 0.3.1-111 or later
SuSE 7.2 (Intel): 0.3.1-112 or later
SuSE 7.3 (Sparc): 0.3.1-49 or later
SuSe 7.3 (PPP Power PC): 0.3.1-60 or later

For Slackware Linux 8.1 and 9.0:
Upgrade to the latest nfs-utils package (1.0.4 or later), as listed in Slackware Security Advisory SSA:2003-195-01b. See References.

For Immunix 7+:
Upgrade to the latest version of nfs-utils (0.3.1-7_imnx_3 or later), as listed in Immunix Secured OS Security Advisory IMNX-2003-7+-018-01. See References.

For Gentoo Linux:
Upgrade to the latest version of nfs-utils (1.0.5 or later), as listed in Gentoo Linux Security Announcement 200307-07. See References.

For Trustix Secure Linux:
Upgrade to the latest nfs-utils package, as listed below. Refer to Trustix Secure Linux Security Advisory #2003-0027 for more information. See References.

Trustix Linux 1.2 and 1.5: 0.3.1-3tr or later
Trustix Linux 2.0: 1.0.5-1tr or later

For Conectiva Linux:
Upgrade to the latest nfs-utils package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2003:700 for more information. See References.

Conectiva Linux 7.0: 0.3.1-6U70_1cl or later
Conectiva Linux 8: 0.3.1-6U80_1cl or later
Conectiva Linux 9: 1.0.1-17482U90_1cl or later

For Turbolinux:
Upgrade to the latest nfs-utils package (0.3.1-5 or 0.2.1-10 or later), as listed in Turbolinux Security Advisory TLSA-2003-44. See References.

For Caldera OpenLinux Server and Workstation 3.1.1:
Upgrade to the latest version of nfs (0.2.1-12 or later), as listed in SCO Security Advisory CSSA-2003-037.0. See References.

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

References:

Platforms Affected:

  • Conectiva Linux 7.0
  • Conectiva Linux 8.0
  • Conectiva Linux 9.0
  • Debian Debian Linux 3.0
  • Gentoo Linux
  • Immunix Immunix OS 7+-beta
  • MandrakeSoft Mandrake Linux 8.2
  • MandrakeSoft Mandrake Linux 8.2 PPC
  • MandrakeSoft Mandrake Linux 9.0
  • MandrakeSoft Mandrake Linux 9.1
  • MandrakeSoft Mandrake Linux 9.1 PPC
  • MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 2.1
  • NFS nfs-utils 1.0.3 and prior
  • Novell SuSE Linux Enterprise Server 7.0
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 AW
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Linux 7
  • RedHat Linux 7.1
  • RedHat Linux 7.1 for iSeries
  • RedHat Linux 7.1 for pSeries
  • RedHat Linux 7.2
  • RedHat Linux 7.3
  • RedHat Linux 8.0
  • RedHat Linux 9.0
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • SCO Caldera OpenLinux Server 3.1.1
  • SCO Caldera OpenLinux Workstation 3.1.1
  • Slackware Slackware Linux 8.1
  • Slackware Slackware Linux 9.0
  • Sun Linux 5.0
  • SuSE Linux Enterprise Server 8
  • SuSE SuSE eMail Server 3.1
  • SuSE SuSE eMail Server III
  • SUSE SuSE Linux 7.2
  • SUSE SuSE Linux 7.3
  • SUSE SuSE Linux 8.0
  • SUSE SuSE Linux 8.1
  • SUSE SuSE Linux 8.2
  • SuSE SuSE Linux Connectivity Server
  • SuSE SuSE Linux Database Server
  • SuSE SuSE Linux Desktop 1.0
  • SuSE SuSE Linux Firewall
  • SuSE SuSE Linux Office Server
  • Turbolinux Turbolinux 7 Server
  • Turbolinux Turbolinux 7 Workstation
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux 8 Workstation
  • Turbolinux Turbolinux Advanced Server 6
  • Turbolinux Turbolinux Server 6.1
  • Turbolinux Turbolinux Server 6.5
  • Turbolinux Turbolinux Workstation 6.0

Reported:

Jul 14, 2003

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.

For corrections or additions please email xforce@iss.net

Return to the main page