(Red Hat Issues Fix) rpc.statd SIGPIPE Error Lets Remote Users Shutdown the Process
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SecurityTracker Alert ID: 1012871 |
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SecurityTracker URL: http://securitytracker.com/id/1012871
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CVE Reference:
CAN-2004-1014
(Links to External Site)
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Date: Jan 13 2005
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in 'rpc.statd'. A remote user can cause denial of service conditions.
Several vendors reported a vulnerability in the NFS statd server. The rpc.statd process does not ignore the SIGPIPE signal. As a result, a remote process can prematurely terminate the TCP connection to trigger the signal and cause the process to shutdown.
SGI developers are credited with discovering this flaw.
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Impact:
A remote user can cause 'rpc.statd' to shutdown.
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Solution:
Red Hat has released a fix.
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
ia64:
1acfa8622a1a9a98f676e8d5e8ada932 nfs-utils-0.3.3-11.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
ia64:
1acfa8622a1a9a98f676e8d5e8ada932 nfs-utils-0.3.3-11.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
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Cause:
State error
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Underlying OS:
Linux (Red Hat Enterprise)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Wed, 12 Jan 2005 13:54 -0500
Subject: [RHSA-2005:014-01] Updated nfs-utils package fixes security
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- ---------------------------------------------------------------------
Red Hat Security Advisory
Synopsis: Updated nfs-utils package fixes security vulnerabilities
Advisory ID: RHSA-2005:014-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-014.html
Issue date: 2005-01-12
Updated on: 2005-01-12
Product: Red Hat Enterprise Linux
CVE Names: CAN-2004-1014 CAN-2004-0946
- ---------------------------------------------------------------------
1. Summary:
An updated nfs-utils package that fixes various security issues is now
available.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
3. Problem description:
The nfs-utils package provides a daemon for the kernel NFS server and
related tools.
SGI reported that the statd daemon did not properly handle the SIGPIPE
signal. A misconfigured or malicious peer could cause statd to crash,
leading to a denial of service. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2004-1014 to this issue.
Arjan van de Ven discovered a buffer overflow in rquotad. On 64-bit
architectures, an improper integer conversion can lead to a buffer
overflow. An attacker with access to an NFS share could send a specially
crafted request which could lead to the execution of arbitrary code. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0946 to this issue.
All users of nfs-utils should upgrade to this updated package, which
resolves these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
http://www.redhat.com/docs/manuals/enterprise/
5. Bug IDs fixed (http://bugzilla.redhat.com/):
144652 - CAN-2004-1014 DoS in statd
138063 - CAN-2004-0946 buffer overflow in rquotad
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
ia64:
1acfa8622a1a9a98f676e8d5e8ada932 nfs-utils-0.3.3-11.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
ia64:
1acfa8622a1a9a98f676e8d5e8ada932 nfs-utils-0.3.3-11.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/nfs-utils-0.3.3-11.src.rpm
9553612895ebfaa51e95f6ca30917ae3 nfs-utils-0.3.3-11.src.rpm
i386:
b5e37053bfa2a629ad89cf8aa55fdd81 nfs-utils-0.3.3-11.i386.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1014
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0946
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2005 Red Hat, Inc.
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