Freshmeat says:
Following up to yesterday's Linux 2.0.38 release, Alan Cox sent out a
security notice about a remote network DoS vulnerability which is
present in all Linux 2.0.x systems. Linux 2.2.x is not affected by
this bug. Causing this requires a great deal of skill and probably a
reasonably local network access as it is extremely timing
dependant. Nevertheless everyone is advised to upgrade systems with
kernels prior to 2.0.38 immediately.
[mod: More details will be published at a later time. The problem is
still hard to exploit, but with the added details, there is bound to
be someone who will try. -- REW]
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Date: Mon, 30 Aug 1999 15:38:52 -0400 (EDT)
From: Cristian Gafton <gafton@redhat.com>
X-Sender: gafton@alien.devel.redhat.com
To: Undisclosed recipients: ;
Subject: SECURITY: RHSA-1999:032 Buffer overflows in amd
Message-ID:
<Pine.LNX.4.10.9908301537320.23939-100000@alien.devel.redhat.com>
Approved: ewt@redhat.com
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
-----BEGIN PGP SIGNED MESSAGE-----
- ---------------------------------------------------------------------
Red Hat, Inc. Security Advisory
Synopsis: Buffer overrun in amd
Advisory ID: RHSA-1999:032-01
Issue date: 1999-08-30
Keywords: amd am-utils buffer overflow remote exploit
- ---------------------------------------------------------------------
1. Topic:
New packages of am-utils are available for all Red Hat Linux platforms. This
version includes an important security fix for a buffer overrun problem
which is being actively exploited on the Internet..
2. Bug IDs fixed:
4690
3. Relevant releases/architectures:
Red Hat Linux 6.0, all architectures
Red Hat Linux 5.2, all architectures
Red Hat Linux 4.2, all architectures
4. Obsoleted by:
5. Conflicts with:
Red Hat Linux 4.2 shipped originally with a version of amd that is no longer
being maintained. Since Red Hat Linux 5.0 we have switched to am-utils. This
release of am-utils has been backported to 4.2 and it will obsolete the
original 4.2 amd package.
The following is valid for all releases and arcitectures: the default
configuration file format for amd that Red Hat used to ship has been
changed. Initially the /etc/amd.conf file used to be the default map file
that would allow access to the /net hierarchy. Now /etc/amd.conf is the amd
configuration file and the default map is installed as /etc/amd.net.
6. RPMs required (for Red Hat Linux 6.0, 5.2 and 4.2 respectively):
Intel:
ftp://updates.redhat.com/6.0/i386/am-utils-6.0.1s11-1.6.0.i386.rpm
ftp://updates.redhat.com/5.2/i386/am-utils-6.0.1s11-1.5.2.i386.rpm
ftp://updates.redhat.com/4.2/i386/am-utils-6.0.1s11-1.4.2.i386.rpm
Alpha:
ftp://updates.redhat.com/6.0/alpha/am-utils-6.0.1s11-1.6.0.alpha.rpm
ftp://updates.redhat.com/5.2/alpha/am-utils-6.0.1s11-1.5.2.alpha.rpm
ftp://updates.redhat.com/4.2/alpha/am-utils-6.0.1s11-1.4.2.alpha.rpm
Sparc:
ftp://updates.redhat.com/6.0/sparc/am-utils-6.0.1s11-1.6.0.sparc.rpm
ftp://updates.redhat.com/5.2/sparc/am-utils-6.0.1s11-1.5.2.sparc.rpm
ftp://updates.redhat.com/4.2/sparc/am-utils-6.0.1s11-1.4.2.sparc.rpm
Source packages:
ftp://updates.redhat.com/6.0/SRPMS/am-utils-6.0.1s11-1.6.0.src.rpm
ftp://updates.redhat.com/5.2/SRPMS/am-utils-6.0.1s11-1.5.2.src.rpm
ftp://updates.redhat.com/4.2/SRPMS/am-utils-6.0.1s11-1.4.2.src.rpm
7. Problem description:
An explotable buffer overflow security problem in the amd daemon which is
part of the am-utils package has been fixed. This problem is being actively
exploted on the Internet and can be used to gain root access on machines
running amd.
Red Hat recommends anyone to upgrade to the fixed versions immediately.
Thanks to Erez Zadok, the maintainer of am-utils for his assistance in
resolving this problem.
8. Solution:
For each RPM for your particular architecture, run:
rpm -Uvh <filename>
where filename is the name of the RPM.
9. Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
0946dbc5539d208625eb27f506177ed2 i386/am-utils-6.0.1s11-1.6.0.i386.rpm
1a1ceb0ed50822776f605e60bbed1afb alpha/am-utils-6.0.1s11-1.6.0.alpha.rpm
b68c6f2780f11ca71947673124bd8f11 sparc/am-utils-6.0.1s11-1.6.0.sparc.rpm
275997ded7f0c85efa6229963e84f668 SRPMS/am-utils-6.0.1s11-1.6.0.src.rpm
e9a06fe4fdf56fdaa9fd984ef5988414 i386/am-utils-6.0.1s11-1.5.2.i386.rpm
617673437abaca052fe950c928722644 alpha/am-utils-6.0.1s11-1.5.2.alpha.rpm
23f3fbdf772eeb7ec67016d1c246225e sparc/am-utils-6.0.1s11-1.5.2.sparc.rpm
01ade16e4171a92fb1c10641846044a7 SRPMS/am-utils-6.0.1s11-1.5.2.src.rpm
cf75db7b60b1d27093685e345153dfcd i386/am-utils-6.0.1s11-1.4.2.i386.rpm
3ec0520caa1a587133ea6cc105f4fc34 alpha/am-utils-6.0.1s11-1.4.2.alpha.rpm
daf8bd0849c584e919fcd5ae8fb1e807 sparc/am-utils-6.0.1s11-1.4.2.sparc.rpm
0aa30be9b859eca2e003bb983c4839f5 SRPMS/am-utils-6.0.1s11-1.4.2.src.rpm
These packages are PGP signed by Red Hat Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nopgp <filename>
10. References:
N/A
Cristian
- --
- ----------------------------------------------------------------------
Cristian Gafton -- gafton@redhat.com -- Red Hat, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"How could this be a problem in a country where we have Intel and
Microsoft?" --Al Gore on Y2K
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Date: Tue, 31 Aug 1999 15:39:14 -0400 (EDT)
From: Cristian Gafton <gafton@redhat.com>
X-Sender: gafton@alien.devel.redhat.com
To: Undisclosed recipients: ;
Subject: [SECURITY] RHSA-1999:034 New proftpd packages available
Message-ID:
<Pine.LNX.4.10.9908311538010.12150-100000@alien.devel.redhat.com>
Approved: ewt@redhat.com
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
-----BEGIN PGP SIGNED MESSAGE-----
- ---------------------------------------------------------------------
Red Hat, Inc. Security Advisory
Synopsis: Buffer overflow in proftpd
Advisory ID: RHSA-1999:034-01
Issue date: 1999-08-31
Keywords: proftpd buffer overflow remote exploit
- ---------------------------------------------------------------------
1. Topic:
proftpd is a ftp server that is shipped by Red Hat as part of the Powertools
CD collection. It is not enabled nor installed by default. However, if you
have switched to proftpd and you are using the version shipped on the Red
Hat Powertoold 6.0 CD you are at risk.
2. Bug IDs fixed:
N/A
3. Relevant releases/architectures:
Red Hat Linux 6.0, all architectures
4. Obsoleted by:
5. Conflicts with:
6. RPMs required:
Intel:
ftp://updates.redhat.com/powertools/6.0/i386/proftpd-1.2.0pre3-6.i386.rpm
Alpha:
ftp://updates.redhat.com/powertools/6.0/alpha/proftpd-1.2.0pre3-6.alpha.rpm
Sparc:
ftp://updates.redhat.com/powertools/6.0/sparc/proftpd-1.2.0pre3-6.sparc.rpm
Source packages:
ftp://updates.redhat.com/powertools/6.0/SRPMS/proftpd-1.2.0pre3-6.src.rpm
7. Problem description:
An explotable buffer overflow security problem in the proftpd daemon has
been fixed. The vulnerability is actively exploited on the Internet and site
administrators are stronly advised to upgrade to the new packages.
Thanks to the members of the BUGTRAQ mailing list and Nic Bellamy for
providing a fix.
8. Solution:
For each RPM for your particular architecture, run:
rpm -Uvh <filename>
where filename is the name of the RPM.
9. Verification:
MD5 sum Package Name
- --------------------------------------------------------------------------
71dfdb94daea8b6f043016ff25d80ccc i386/proftpd-1.2.0pre3-6.i386.rpm
a8f2d44de9fb5607c5a43c761af5f1a2 alpha/proftpd-1.2.0pre3-6.alpha.rpm
9091ad2a484b85263576c4a6b3c8b4ab sparc/proftpd-1.2.0pre3-6.sparc.rpm
5e374a647f6fd104046b726bf221b3cd SRPMS/proftpd-1.2.0pre3-6.src.rpm
These packages are PGP signed by Red Hat Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nopgp <filename>
10. References:
Cristian
- --
- ----------------------------------------------------------------------
Cristian Gafton -- gafton@redhat.com -- Red Hat, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"How could this be a problem in a country where we have Intel and
Microsoft?" --Al Gore on Y2K
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