LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: July 18th, 2014
Linux Advisory Watch: July 13th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Slackware: kernel Priv. Escal. patch for 8.1 Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Slackware There is a bounds-checking problem in the kernel's mremap() call which could be used by a local attacker to gain root privileges.

[slackware-security]  Slackware 8.1 kernel security update  (SSA:2004-008-01)

New kernels are available for Slackware 8.1 containing a
backported fix from a bounds-checking problem in the kernel's
mremap() call which could be used by a local attacker to gain
root privileges.  This fix was previously issued for Slackware
9.0, 9.1, and -current (SSA:2004-006-01).

Sites running Slackware 8.1 should upgrade to the new kernel.
After installing the new kernel, be sure to run 'lilo'.

More details about this issue may be found in the Common
Vulnerabilities and Exposures (CVE) database:

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0985


Here are the details from the Slackware 8.1 ChangeLog:
+--------------------------+
Thu Jan  8 18:21:27 PST 2004
patches/kernels/*:  These are 2.4.18 kernels containing a backported
  fix for a security problem with the kernel's mremap() function.
  A local user could exploit this hole to gain root privileges.
  For more details, see:
     http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0985
  After installing the new kernel, be sure to run 'lilo'.
  (* Security fix *)
patches/packages/kernel-ide-2.4.18-i386-5.tgz:  Patched mremap().
  (* Security fix *)
patches/packages/kernel-source-2.4.18-noarch-6.tgz:  This is
  the source code from kernel-source-2.4.18-noarch-5 with the fix
  for mremap().
  (* Security fix *)
+--------------------------+


WHERE TO FIND THE NEW PACKAGES:
+-----------------------------+

Updated packages for Slackware 8.1: 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/kernel-ide-2.4.18-i386-5.tgz 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/kernel-source-2.4.18-noarch-6.tgz

An alternate kernel may be installed.  Those are found in this directory: 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/kernels/


MD5 SIGNATURES:
+-------------+

MD5 signatures may be downloaded from our FTP server:

Slackware 8.1 packages: 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/CHECKSUMS.md5

To verify authenticity, this file has been signed with the Slackware
GPG key (use 'gpg --verify'):
 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/CHECKSUMS.md5.asc


INSTALLATION INSTRUCTIONS:
+------------------------+

Use upgradepkg to install the new kernel, kernel-modules, and alsa packages.
After installing the kernel-ide package you will need to run lilo ('lilo' at
a command prompt) or create a new system boot disk ('makebootdisk'), and
reboot.

If desired, a kernel from the kernels/ directory may be used instead.  For
example, to use the kernel in kernels/scsi.s/, you would copy it to the
boot directory like this:

cd kernels/scsi.s
cp bzImage /boot/vmlinuz-scsi.s-2.4.18

Create a symbolic link:
ln -sf /boot/vmlinuz-scsi.s-2.4.18 /boot/vmlinuz

Then, run 'lilo' or create a new system boot disk and reboot.


+-----+

Slackware Linux Security Team 
http://slackware.com/gpg-key
security@slackware.com

 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Anti-surveillance advocates want you to run an open, secure WiFi router
Attackers raid SWISS BANKS with DNS and malware bombs
A Convicted Hacker and an Internet Icon Join Forces to Thwart NSA Spying
Black Hat presentation on TOR suddenly cancelled
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.