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MDKSA-2001:012 - glibc update
From: Linux Mandrake Security Team <security () LINUX-MANDRAKE COM>
Date: Thu, 18 Jan 2001 14:58:19 -0700

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________________________________________________________________________

                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:           glibc
Date:                   January 18th, 2001
Advisory ID:            MDKSA-2001:012

Affected versions:      6.0, 6.1, 7.0, 7.1, 7.2, Corporate Server 1.0.1
________________________________________________________________________

Problem Description:

 The LD_PRELOAD variable in the GNU C Library is honoured normally
 even for SUID/SGID applications (but removed afterwards from the
 environment) if it does not contain '/' characters.  There is a
 special check which only preloads found libraries if they have the
 SUID bit set.  However, if a library has been found in
 /etc/ld.so.cache, this check was not performed.  As a result, a
 malicious user could preload some library located in /lib or /usr/lib
 before SUID/SGID applications and create or overwrite a file he would
 not normally have permission to.  As well, LD_PROFILE output from SUID
 programs would go into /var/tmp, making it vulnerable to various link
 attacks.
________________________________________________________________________

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 Linux-Mandrake Security Team at
  http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.

Linux-Mandrake 6.0:
40c5a62fe717337c78b89162e706b204  6.0/RPMS/glibc-2.1.3-18.2mdk.i586.rpm
853008b0e720f9ae4cee919edb9b299f  6.0/RPMS/glibc-devel-2.1.3-18.2mdk.i586.rpm
395f5b6ce2ac5a9d712112d5c025d037  6.0/RPMS/glibc-profile-2.1.3-18.2mdk.i586.rpm
96d42b788a258f9d89974abb16646489  6.0/SRPMS/glibc-2.1.3-18.2mdk.src.rpm

Linux-Mandrake 6.1:
40c5a62fe717337c78b89162e706b204  6.1/RPMS/glibc-2.1.3-18.2mdk.i586.rpm
853008b0e720f9ae4cee919edb9b299f  6.1/RPMS/glibc-devel-2.1.3-18.2mdk.i586.rpm
395f5b6ce2ac5a9d712112d5c025d037  6.1/RPMS/glibc-profile-2.1.3-18.2mdk.i586.rpm
96d42b788a258f9d89974abb16646489  6.1/SRPMS/glibc-2.1.3-18.2mdk.src.rpm

Linux-Mandrake 7.0:
40c5a62fe717337c78b89162e706b204  7.0/RPMS/glibc-2.1.3-18.2mdk.i586.rpm
853008b0e720f9ae4cee919edb9b299f  7.0/RPMS/glibc-devel-2.1.3-18.2mdk.i586.rpm
395f5b6ce2ac5a9d712112d5c025d037  7.0/RPMS/glibc-profile-2.1.3-18.2mdk.i586.rpm
96d42b788a258f9d89974abb16646489  7.0/SRPMS/glibc-2.1.3-18.2mdk.src.rpm

Linux-Mandrake 7.1:
05f0ef4d07e638706262ff606518aedd  7.1/RPMS/glibc-2.1.3-18.1mdk.i586.rpm
8681ffba3948fdc1e3fa2ecbf1eab54d  7.1/RPMS/glibc-devel-2.1.3-18.1mdk.i586.rpm
3f5316876c80c318cb39c68294412239  7.1/RPMS/glibc-profile-2.1.3-18.1mdk.i586.rpm
f68106cdfb899877f9984c1b9aabed70  7.1/SRPMS/glibc-2.1.3-18.1mdk.src.rpm

Linux-Mandrake 7.2:
4720a8d7f0c973a3eec8a7539766b590  7.2/RPMS/glibc-2.1.3-18.3mdk.i586.rpm
fcdbafc369120fb5a81566fd3cdabe03  7.2/RPMS/glibc-devel-2.1.3-18.3mdk.i586.rpm
df76db4b226004082bbc0eb4d1034e87  7.2/RPMS/glibc-profile-2.1.3-18.3mdk.i586.rpm
09c064f52f8b1e0ac28fa30fa171dd7c  7.2/SRPMS/glibc-2.1.3-18.3mdk.src.rpm

Corporate Server 1.0.1:
05f0ef4d07e638706262ff606518aedd  1.0.1/RPMS/glibc-2.1.3-18.1mdk.i586.rpm
8681ffba3948fdc1e3fa2ecbf1eab54d  1.0.1/RPMS/glibc-devel-2.1.3-18.1mdk.i586.rpm
3f5316876c80c318cb39c68294412239  1.0.1/RPMS/glibc-profile-2.1.3-18.1mdk.i586.rpm
f68106cdfb899877f9984c1b9aabed70  1.0.1/SRPMS/glibc-2.1.3-18.1mdk.src.rpm
________________________________________________________________________

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
Linux-Mandrake 7.2, look for it in "updates/7.2/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 Linux-Mandrake at:

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

If you want to report vulnerabilities, please contact

  security () linux-mandrake com
________________________________________________________________________

Linux-Mandrake has two security-related mailing list services that
anyone can subscribe to:

security-announce () linux-mandrake com

  Linux-Mandrake's security announcements mailing list.  Only
  announcements are sent to this list and it is read-only.

security-discuss () linux-mandrake com

  Linux-Mandrake's security discussion mailing list.  This list is open
  to anyone to discuss Linux-Mandrake security specifically and Linux
  security in general.

To subscribe to either list, send a message to
  sympa () linux-mandrake com
with "subscribe [listname]" in the body of the message.

To remove yourself from either list, send a message to
  sympa () linux-mandrake com
with "unsubscribe [listname]" in the body of the message.

To get more information on either list, send a message to
  sympa () linux-mandrake com
with "info [listname]" in the body of the message.

Optionally, you can use the web interface to subscribe to or unsubscribe
from either list:

  http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________

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


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