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Linux Advisory Watch: June 3rd 2005 Print E-mail
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Source: LinuxSecurity.com Contributors - Posted by Benjamin D. Thomas   
Linux Advisory Watch This week, advisories were released for qpopper, openssl, php4, bzip2, ImageMagick, bind, netpbm, gxine, imap4d, elfutils, gnutls, and postgresql. The distributors include Debian, Fedora, Gentoo, and Red Hat.


Internet Productivity Suite: Open Source Security - Trust Internet Productivity Suite's open source architecture to give you the best security and productivity applications available. Collaborating with thousands of developers, Guardian Digital security engineers implement the most technologically advanced ideas and methods into their design.
Importance of Information Security Management
By Benjamin D. Thomas

Organizations today rely on IT for distributed processing, automation of repetitive tasks, and electronic commerce. Processing that would have been done by hand years ago, is now completely executed on computers. This has evolved so much that it is no longer feasible and in some cases impossible to conduct business processing by hand. In the event of only a temporary loss of IT services, results could be catastrophic. Without a secure IT infrastructure, an organization risks the possibility of complete operational failure. The primary aim of information security is to preserve the confidentiality, integrity, and availability of information from unauthorized disclosure, unauthorized modification, destruction, or misuse. Failure to appropriately manage information security will put an organization at risk of loss of income, loss of competitive advantage, or possible legal penalties if not compliant with relevant regulations. Having the right information at the right time in the right hands of the right people is often the difference between profit/loss, and success/failure. It must be understood that information is a key business asset and preserving confidentiality, integrity, and availability to crucial to the continued success of any organization.

Importance of Confidentiality

Proper information security management can help protect against confidentiality breaches. In the event of an unauthorized disclosure of proprietary information, a company could loose millions to a competitor due to the loss of research and development time/capital and the competitive advantage of being first to market. Across the world, nations are passing legislation protecting the privacy of personal information. Failure to adequately protect against breaches in confidentiality may result in strictpenalties or prosecution for negligence.

Importance of Integrity

Ensuring data integrity is vital to ensure that appropriate business decisions are made with the information available. An unauthorized modification can either be intentional or unintentional. In either scenario, the outcome can be catastrophic. Data that has beenimproperly modified has the potential to result in bad information. Faulty information can lead to bad business decisions, which can ultimately result in business failure. At a financial institution a single misplaced digit could result in the loss of millions. It is extremely important that organizations have the ability to detect any violations of integrity and mitigate any possible damages that may occur from a breach.

Importance of Availability

Information availability is also a key aspect of information security management. Ensuring proper information availability will help an organization maintain its highest level of productivity. Information security availability planning involves contingency and disaster recovery as well as protecting against temporary technical glitches or recovering information from backup archives. By appropriately managing information availability, planning and facilitating a recovery strategy can ensure that business impact and loss of assets is minimized in the event of an incident.


LinuxSecurity.com Feature Extras:

Getting to Know Linux Security: File Permissions - Welcome to the first tutorial in the 'Getting to Know Linux Security' series. The topic explored is Linux file permissions. It offers an easy to follow explanation of how to read permissions, and how to set them using chmod. This guide is intended for users new to Linux security, therefore very simple. If the feedback is good, I'll consider creating more complex guides for advanced users. Please let us know what you think and how these can be improved.

The Tao of Network Security Monitoring: Beyond Intrusion Detection - To be honest, this was one of the best books that I've read on network security. Others books often dive so deeply into technical discussions, they fail to provide any relevance to network engineers/administrators working in a corporate environment. Budgets, deadlines, and flexibility are issues that we must all address. The Tao of Network Security Monitoring is presented in such a way that all of these are still relevant.

Encrypting Shell Scripts - Do you have scripts that contain sensitive information like passwords and you pretty much depend on file permissions to keep it secure? If so, then that type of security is good provided you keep your system secure and some user doesn't have a "ps -ef" loop running in an attempt to capture that sensitive info (though some applications mask passwords in "ps" output).

 

Take advantage of our Linux Security discussion list! This mailing list is for general security-related questions and comments. To subscribe send an e-mail to security-discuss-request@linuxsecurity.com with "subscribe" as the subject.

Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headline.


   Debian
  Debian: New qpopper packages fix arbitrary file overwriting
  26th, May, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119199
 
  Debian: New PHP4 packages fix denial of service
  26th, May, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119203
 
  Debian: New bzip2 packages fix file unauthorised permissions modification
  27th, May, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119214
 
   Fedora
  Fedora Core 3 Update: ImageMagick-6.2.2.0-2.fc3
  26th, May, 2005

An malicious image could cause a denial-of-service in the xwd coder. The update fixes this issue.

http://www.linuxsecurity.com/content/view/119206
 
  Fedora Core 3 Update: system-config-netboot-0.1.16-1_FC3
  27th, May, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119216
 
  Fedora Core 3 Update: system-config-bind-4.0.0-16
  27th, May, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119217
 
  Fedora Core 3 Update: netpbm-10.27-4.FC3
  1st, June, 2005

Updated package.

http://www.linuxsecurity.com/content/view/119230
 
   Gentoo
  Gentoo: gxine Format string vulnerability
  26th, May, 2005

A format string vulnerability in gxine could allow a remote attacker to execute arbitrary code.

http://www.linuxsecurity.com/content/view/119200
 
  Gentoo: Mailutils Multiple vulnerabilities in imap4d
  27th, May, 2005

The imap4d server and the mail utility from GNU Mailutils contain multiple vulnerabilities, potentially allowing a remote attacker to execute arbitrary code with root privileges.

http://www.linuxsecurity.com/content/view/119211
 
  Gentoo: Binutils, elfutils Buffer overflow
  1st, June, 2005

Various utilities from the GNU Binutils and elfutils packages are vulnerable to a heap based buffer overflow, potentially resulting in the execution of arbitrary code.

http://www.linuxsecurity.com/content/view/119228
 
   Red Hat
  RedHat: Moderate: gnutls security update
  1st, June, 2005

Updated GnuTLS packages that fix a remote denial of service vulnerability are available for Red Hat Enterprise Linux 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

http://www.linuxsecurity.com/content/view/119231
 
  RedHat: Moderate: postgresql security update
  1st, June, 2005

Updated postgresql packages that fix several security vulnerabilities and risks of data loss are now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

http://www.linuxsecurity.com/content/view/119232
 
  RedHat: Moderate: openssl security update
  1st, June, 2005

Updated OpenSSL packages that fix security issues are now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

http://www.linuxsecurity.com/content/view/119233
 

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