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Slackware: 'glibc' vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Slackware glibc-2.2 contains a local vulnerability that affects all setuid rootbinaries.

glibc-2.2 contains a local vulnerability that affects all setuid root
binaries.  Any user on affected systems will be able to read any file on
the system through a simple process:  The user sets the RESOLV_HOST_CONF
environment variable to the name of the file that they wish to read, then
runs any setuid root program that makes use of that variable.  The file is
then written to stderr.

The original BugTraq announcement can be read at the following URL:

    http://www.securityfocus.com/archive/1/155352

Users of Slackware -current are strongly urged to upgrade to the new
glibc packages in the -current branch.

=========================================================================
glibc 2.2 AVAILABLE - (a1/glibcso.tgz, d1/glibc.tgz)
=========================================================================

PACKAGE INFORMATION:
--------------------
a1/glibcso.tgz:
   This package contains the runtime libraries for glibc 2.2  All users
   of Slackware -current should upgrade this package.

d1/glibc.tgz:
   This is the full glibc 2.2 package, complete with headers and static
   libraries.  If you had previously installed this package, you need
   to upgrade it.

WHERE TO FIND THE NEW PACKAGES:
-------------------------------
All new packages can be found in the -current branch:
 
ftp://ftp.slackware.com/pub/slackware/slackware-current/slakware/a1/glibcso.tgz 
ftp://ftp.slackware.com/pub/slackware/slackware-current/slakware/d1/glibc.tgz

MD5 SIGNATURES AND CHECKSUMS:
-----------------------------
Here are the md5sums and checksums for the packages:

   16-bit "sum" checksum:
   39060  1054   a1/glibcso.tgz
   61562 26779   d1/glibc.tgz

   128-bit MD5 message digest:
   6ea2e3fecf1a1a970f1e37b7be7c12aa  a1/glibcso.tgz
   4f1e8ef903f1d0dd675aaf0cc3926177  d1/glibc.tgz

INSTALLATION INSTRUCTIONS:
--------------------------
It is recommended that the two packages above be upgraded in single user
mode (runlevel 1).  Bring the system into runlevel 1:

   # telinit 1

Then upgrade the packages:

   # upgradepkg .tgz

Then bring the system back into multiuser mode:

   # telinit 3


Remember, it's also a good idea to backup configuration files before
upgrading packages.

- Slackware Linux Security Team
   http://www.slackware.com


 
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