This week, advisories were released for Nexuiz, mplayer, chmlib, php, spamassassin, gnome-terminal, snort, tcpdump, timezone, seamonkey, firefox, clamav, ekiga, enigmail, and nvidia-glx-config. The distributors include Gentoo, Mandriva, Red Hat, Slackware, SuSE, and Ubuntu.


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LinuxSecurity.com Feature Extras:

    RFID with Bio-Smart Card in Linux - In this paper, we describe the integration of fingerprint template and RF smart card for clustered network, which is designed on Linux platform and Open source technology to obtain biometrics security. Combination of smart card and biometrics has achieved in two step authentication where smart card authentication is based on a Personal Identification Number (PIN) and the card holder is authenticated using the biometrics template stored in the smart card that is based on the fingerprint verification. The fingerprint verification has to be executed on central host server for security purposes. Protocol designed allows controlling entire parameters of smart security controller like PIN options, Reader delay, real-time clock, alarm option and cardholder access conditions.

    Linux File & Directory Permissions Mistakes - One common mistake Linux administrators make is having file and directory permissions that are far too liberal and allow access beyond that which is needed for proper system operations. A full explanation of unix file permissions is beyond the scope of this article, so I'll assume you are familiar with the usage of such tools as chmod, chown, and chgrp. If you'd like a refresher, one is available right here on linuxsecurity.com.

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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.


Gentoo
Gentoo: Nexuiz Multiple vulnerabilities
25th, February, 2007

Two separate vulnerabilities have been found in Nexuiz allowing the remote execution of arbitrary code and a Denial of Service.

Gentoo: UFO2000 Multiple vulnerabilities
25th, February, 2007

Multiple vulnerabilities have been found in the network components of UFO2000 that could result in the remote execution of arbitrary code.

Gentoo: MPlayer Buffer overflow
27th, February, 2007

A buffer overflow was found in MPlayer's RTSP plugin that could lead to a Denial of Service or arbitrary code execution.

Gentoo: CHMlib User-assisted remote execution of arbitrary code
27th, February, 2007

A memory corruption vulnerability in CHMlib could lead to the remote execution of arbitrary code.

Mandriva
Mandriva: Updated php packages fix multiple vulnerabilities
23rd, February, 2007

A number of vulnerabilities were discovered in PHP language. Many buffer overflow flaws were discovered in the PHP session extension, the str_replace() function, and the imap_mail_compose() function. An attacker able to use a PHP application using any of these functions could trigger these flaws and possibly execute arbitrary code as the apache user (CVE-2007-0906).

Mandriva: Updated spamassassin packages fix DoS vulnerability
23rd, February, 2007

A bug in the way that SpamAssassin processes HTML emails containing URIs was discovered in versions 3.1.x. A carefully crafted mail message could make SpamAssassin consume significant amounts of CPU resources that could delay or prevent the delivery of mail if a number of these messages were sent at once.

Mandriva: Updated gnome-terminal packages resizing issue
26th, February, 2007

A bug was causing incorrect window resizing when switching between multiple tabs in GNOME-Terminal. This bug, as well as memory leaks, has been fixed with this update.

Mandriva: Updated Firefox packages fix multiple vulnerabilities
28th, February, 2007

A number of security vulnerabilities have been discovered and corrected in the latest Mozilla Firefox program, version 1.5.0.10. This update provides the latest Firefox to correct these issues.

Mandriva: Updated snort packages fix DoS vulnerability
28th, February, 2007

Algorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rules, allows remote attackers to cause a denial of service (CPU consumption and detection outage) via crafted network traffic, aka a backtracking attack. Updated packages have been patched to address this issue.

Mandriva: Updated tcpdump packages fix segfault
1st, March, 2007

Tcpdump would cause a segmentation fault on certain packets when reading back a captured tcpdump file. This update corrects that problem.

Mandriva: Updated timezone packages provide updated DST information
1st, March, 2007

Updated timezone packages are being provided for older Mandriva Linux systems that do not contain the new Daylight Savings Time information for 2007 for certain time zones. These updated packages contain the new information.

Red Hat
RedHat: Important: php security update
22nd, February, 2007

Updated PHP packages that fix several security issues are now available for Red Hat Application Stack v1.1. This update has been rated as having important security impact by the Red Hat Security Response Team.

advisories/red-hat/redhat-important-php-security-update-98171
RedHat: Critical: seamonkey security update
23rd, February, 2007

Updated seamonkey packages that fix several security bugs are now available for Red Hat Enterprise Linux 2.1, 3, and 4. This update has been rated as having critical security impact by the Red Hat Security Response Team.

advisories/red-hat/redhat-critical-seamonkey-security-update-3241
RedHat: Critical: Firefox security update
23rd, February, 2007

Updated firefox packages that fix several security bugs are now available for Red Hat Enterprise Linux 4. This update has been rated as having critical security impact by the Red Hat Security Response Team.

advisories/red-hat/redhat-critical-firefox-security-update-38591
RedHat: Important: kernel security update
27th, February, 2007

Updated kernel packages that fix two security issues and a bug in the Red Hat Enterprise Linux 4 kernel are now available. This update has been rated as having important security impact by the Red Hat Security Response Team.

advisories/red-hat/redhat-important-kernel-security-update-85756
Slackware
Slackware: php
23rd, February, 2007

New php packages are available for Slackware 10.2 and 11.0 to improve the stability and security of PHP. Quite a few bugs were fixed -- please see https://www.php.net/ for a detailed list.

SuSE
SuSE: clamav 0.90 (SUSE-SA:2007:017)
23rd, February, 2007

Updated package.

SuSE: Linux Kernel (SUSE-SA:2007:018)
27th, February, 2007

A kernel update has been released to fix several security problems.

Ubuntu
Ubuntu: Ekiga vulnerabilities
22nd, February, 2007

Mu Security discovered a format string vulnerability in Ekiga. If a user was running Ekiga and listening for incoming calls, a remote attacker could send a crafted call request, and execute arbitrary code with the user's privileges.

advisories/ubuntu/ubuntu-ekiga-vulnerabilities
Ubuntu: enigmail vulnerability
23rd, February, 2007

Mikhail Markin reported that enigmail incorrectly handled memory allocations for certain large encrypted attachments. This caused Thunderbird to crash and thus caused the entire message to be inaccessible.

advisories/ubuntu/ubuntu-enigmail-vulnerability
Ubuntu: Firefox vulnerabilities
28th, February, 2007

Several flaws have been found in Firefox that could be used to perform Cross-site scripting attacks.

advisories/ubuntu/ubuntu-firefox-vulnerabilities-99643
Ubuntu: nvidia-glx-config regression
1st, March, 2007

USN-416-1 fixed various vulnerabilities in the Linux kernel. Unfortunately that update caused the 'nvidia-glx-config' script to not work any more. The new version fixes the problem. We apologize for the inconvenience.

advisories/ubuntu/ubuntu-nvidia-glx-config-regression