Trustix: “There is a problem in the glob(3) function of the Glibc library which
allows for exploitation of programs that pass user supplied input
directly to it.”

From:	 Trustix Secure Linux Advisor <tsl@trustix.com>
To:	 tsl-announce@trustix.org
Subject: TSLSA-2001-0029 - glibc
Date:	 Thu, 20 Dec 2001 15:19:48 +0100
Cc:	 bugtraq@securityfocus.com

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Trustix Secure Linux Security Advisory #2001-0029

Package name:      glibc
Severity:          Buffer overflow
Date:              2001-12-19
Affected versions: TSL 1.01, 1.1, 1.2, 1.5

- --------------------------------------------------------------------------

Problem description:
  There is a problem in the glob(3) function of the Glibc library which
  allows for exploitation of programs that pass user supplied input
  directly to it.


Action:
  We recommend that all systems with this package installed are upgraded.


Location:
  All TSL updates are available from
  <URI:http://www.trustix.net/pub/Trustix/updates/>
<URI:ftp://ftp.trustix.net/pub/Trustix/updates/>


Automatic updates:
  Users of the SWUP tool, can enjoy having updates automatically
  installed using 'swup --upgrade'.

  Get SWUP from:
  <URI:ftp://ftp.trustix.net/pub/Trustix/software/swup/>


Questions?
  Check out our mailing lists:
  <URI:http://www.trustix.net/support/>


Verification:
  This advisory along with all TSL packages are signed with the TSL sign key.
  This key available from:
  <URI:http://www.trustix.net/TSL-GPG-KEY>

The advisory itself is available from the errata pages at
  <URI:http://www.trustix.net/errata/trustix-1.2/> and
  <URI:http://www.trustix.net/errata/trustix-1.5/>
or directly at
  <URI:http://www.trustix.net/errata/misc/2001/TSL-2001-0029-glibc.asc.txt>

MD5sums of the packages:
- --------------------------------------------------------------------------
b09da93d8c0aaa3ea05f96eac0670f4b  ./1.5/SRPMS/glibc-2.1.3-16tr.src.rpm
066333d08effaf470bd34d7eed678bc0  ./1.5/RPMS/glibc-profile-2.1.3-16tr.i586.rpm
9978d2532b03f429b7d60608d7998416  ./1.5/RPMS/glibc-devel-2.1.3-16tr.i586.rpm
24bfe2e19232744126c321534a120aa5  ./1.5/RPMS/glibc-2.1.3-16tr.i586.rpm
b09da93d8c0aaa3ea05f96eac0670f4b  ./1.2/SRPMS/glibc-2.1.3-16tr.src.rpm
e1b3655cb6f93f5c9e20a233f3872a1e  ./1.2/RPMS/glibc-profile-2.1.3-16tr.i586.rpm
91ab7db274ed981e88c75f76debb8a97  ./1.2/RPMS/glibc-devel-2.1.3-16tr.i586.rpm
152ebaee28c79a11205e80f2dd7335cd  ./1.2/RPMS/glibc-2.1.3-16tr.i586.rpm
b09da93d8c0aaa3ea05f96eac0670f4b  ./1.1/SRPMS/glibc-2.1.3-16tr.src.rpm
185918341e54d62746496b46abfc87b2  ./1.1/RPMS/glibc-profile-2.1.3-16tr.i586.rpm
4e4c5f29e794e040eb55ad04c20d7d63  ./1.1/RPMS/glibc-devel-2.1.3-16tr.i586.rpm
9f3bddc70339a87f5f47bf8ac04ef253  ./1.1/RPMS/glibc-2.1.3-16tr.i586.rpm
- --------------------------------------------------------------------------


Trustix Security Team
 
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_______________________________________________
tsl-announce mailing list
tsl-announce@trustix.org
http://www.trustix.org/mailman/listinfo.cgi/tsl-announce

Security Focus: “A college computer technician who offered his school’s unused computer processing power for an encryption research project will be tried next month in Georgia for computer theft and trespassing charges that carry a potential total of 120 years in jail. The closely-watched case if one of the first in which state prosecutors have lodged felony charges for allegedly downloading third-party software without permission.” Read more here.

Mandrake: “A remote format string vulnerability was found in the libgtop daemon by
Laboratory intexxia. By sending a specially crafted format string to
the server, a remote attacker could potentially execute arbitrary code
on the remote system with the daemon’s permissions.”

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           libgtop
Date:                   December 19th, 2001
Advisory ID:            MDKSA-2001:094

Affected versions:      7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1
________________________________________________________________________

Problem Description:

 A remote format string vulnerability was found in the libgtop daemon by
 Laboratory intexxia.  By sending a specially crafted format string to
 the server, a remote attacker could potentially execute arbitrary code
 on the remote system with the daemon's permissions.  By default libgtop
 runs as the user nobody, but the flaw could be used to compromise local
 system security by allowing the attacker to exploit other local
 vulnerabilities.  A buffer overflow was also found by Flavio Veloso
 which could allow the client to execute code on the server.  Both
 vulnerabilities are patched in this update and will be fixed upstream
 in version 1.0.14.  libgtop_daemon is not invoked by default anywhere
 in Mandrake Linux.
________________________________________________________________________

References:

   http://www.securityfocus.com/bid/3594
________________________________________________________________________

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig package.rpm

You can get the GPG public key of the Mandrake Linux Security Team at:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.

Linux-Mandrake 7.1:
4460a5e35ae7d547298577edeff6f599  7.1/RPMS/libgtop-1.0.7-0.2mdk.i586.rpm
f9475e8907edcc20aade65e50829f609  7.1/RPMS/libgtop-devel-1.0.7-0.2mdk.i586.rpm
597321a95fbf7bc1e23510f478fb78e5  7.1/SRPMS/libgtop-1.0.7-0.2mdk.src.rpm

Linux-Mandrake 7.2:
a7884a2c6af568510428aa02a354a30c  7.2/RPMS/libgtop-1.0.9-5.1mdk.i586.rpm
00d86824f66784890e348752144a476f  7.2/RPMS/libgtop-devel-1.0.9-5.1mdk.i586.rpm
6515e7d2a32b750062833cb59dbc64e7  7.2/SRPMS/libgtop-1.0.9-5.1mdk.src.rpm

Mandrake Linux 8.0:
2a063541aa9f9a100dd4c65b732224fd  8.0/RPMS/libgtop1-1.0.12-4.1mdk.i586.rpm
fb4cfb4b72e16121a6dab24e093b1de3  8.0/RPMS/libgtop1-devel-1.0.12-4.1mdk.i586.rpm
ae5c879fd1557cf964c4da572597ee94  8.0/SRPMS/libgtop-1.0.12-4.1mdk.src.rpm

Mandrake Linux 8.0 (PPC):
8e1dbba939c6281e22f57056dea4bb21  ppc/8.0/RPMS/libgtop1-1.0.12-4.1mdk.ppc.rpm
573688a8cdb56d2f07b8fc014784d036  ppc/8.0/RPMS/libgtop1-devel-1.0.12-4.1mdk.ppc.rpm
ae5c879fd1557cf964c4da572597ee94  ppc/8.0/SRPMS/libgtop-1.0.12-4.1mdk.src.rpm

Mandrake Linux 8.1:
20b663d5dd475a7fdc3a538f1a2a3eef  8.1/RPMS/libgtop1-1.0.12-4.1mdk.i586.rpm
0bcd19f280c7723e098918bbc68f52af  8.1/RPMS/libgtop1-devel-1.0.12-4.1mdk.i586.rpm
ae5c879fd1557cf964c4da572597ee94  8.1/SRPMS/libgtop-1.0.12-4.1mdk.src.rpm

Mandrake Linux 8.1 (IA64):
31f68bbde5ead6d8262c5b5cfb056918  ia64/8.1/RPMS/libgtop1-1.0.12-4.1mdk.ia64.rpm
c454857c349043d5f20b7b34d61fe1b2  ia64/8.1/RPMS/libgtop1-devel-1.0.12-4.1mdk.ia64.rpm
ae5c879fd1557cf964c4da572597ee94  ia64/8.1/SRPMS/libgtop-1.0.12-4.1mdk.src.rpm

Corporate Server 1.0.1:
4460a5e35ae7d547298577edeff6f599  1.0.1/RPMS/libgtop-1.0.7-0.2mdk.i586.rpm
f9475e8907edcc20aade65e50829f609  1.0.1/RPMS/libgtop-devel-1.0.7-0.2mdk.i586.rpm
597321a95fbf7bc1e23510f478fb78e5  1.0.1/SRPMS/libgtop-1.0.7-0.2mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

Before applying this update, make sure all previously released updates
relevant to your system have been applied.  To upgrade automatically,
use MandrakeUpdate.

If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".

You can download the updates directly from one of the mirror sites
listed at:

   http://www.linux-mandrake.com/en/ftp.php3.

Updated packages are available in the "updates/[ver]/RPMS/" directory.
For example, if you are looking for an updated RPM package for
Mandrake Linux 8.1, look for it in "updates/8.1/RPMS/".  Updated source
RPMs are available as well, but you generally do not need to download
them.

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other security advisories for Mandrake Linux at:

   http://www.linux-mandrake.com/en/security/

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Mandrake Linux has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

   http://www.mandrakesecure.net/en/mlist.php
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  security@linux-mandrake.com>


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Slashdot: “‘I was excited about this book because rarely does one come out that so directly applies to what I do day to day. I work at a national research lab, help out at a web hosting facility and run poliglut in my spare time. So, I’m used to dealing with the cleanup that occurs after a successful attack.’ The book is O’Reilly’s updated Web Security, Privacy and Commerce. Read on for more of Rich’s take on it.”

Posted on LWN.net: Today, SuSE Linux, the
international Open Source technology leader and solutions
provider, announced the release of “SuSE Linux Enterprise Server 7
for Intel® Itanium(tm) Processor Family”, a result of a close
cooperation between SuSE Linux and Intel. Its high scalability and
extreme failsafety make SuSE Linux Enterprise Server 7 the
operating system of choice for mission-critical applications.

Anonymous Reader writes, “The Amsterdam district court ruled two weeks ago that the KaZaa P2P program is acting unlawfully by making software available that allows users to download music files and must shut down. The court gave the company 14 days to do this or face $40,000 US a day in fines. KaZaa is still up and running, choosing to ignore the shutdown order.

http://www.mp3newswire.net/stories/2001/kazaa.html“

IT-director.com examines Microsoft’s claims that XP is better for embedded devices than Linux. “Then [Microsoft] tries to say that Linux is not up to the job and, of course, Windows XP is. That’s where the document gets quite entertaining. It sets off down a long list of comparisons between embedded XP and Linux solutions based upon six major areas of comparison. It tears a strip off the Linux approach for not having in-built support for certain technologies, for not having its own standard development environment.”

The Register reports that the Finnish city of Turku has moved closer to switching to Linux, following a
preliminary study of the platform’s suitability. Turku began investigating a switch
earlier this year in response to Microsoft’s new licensing terms.

Commentary from Bruce Perens at ZDNet: “E-book publishers might think of jailed Russian cryptanalyst Dimitry
Sklyarov as their worst enemy … until they see his slide show.”

Posted at LWN.net: “Flavio Veloso found an overflowable buffer problem in earlier versions
of the glibc glob(3) implementation. It may be possible to exploit
some programs that pass input to the glibc glob() function in a manner
that can be modified by the user.”