+---------------------------------------------------------------------+ | LinuxSecurity.com Weekly Newsletter | | May 12th, 2006 Volume 7, Number 20n | | | | Editorial Team: Dave Wreski dave@xxxxxxxxxxxxxxxxx | | Benjamin D. Thomas ben@xxxxxxxxxxxxxxxxx | +---------------------------------------------------------------------+ 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 headlines. This week, advisories were released for thunderbird, cgiirc, tiff, rsync, firefox, nagios, xorg-x11, cpio, gzip, gdm, mysql, xine, libtiff, ruby, php, and cyrus. The distributors include Debain, Gentoo, Mandriva, Red Hat, and SuSE. --- EnGarde Secure Linux: Why not give it a try? EnGarde Secure Linux is a Linux server distribution that is geared toward providing a open source platform that is highly secure by default as well as easy to administer. EnGarde Secure Linux includes a select group of open source packages configured to provide maximum security for tasks such as serving dynamic websites, high availability mail transport, network intrusion detection, and more. The Community edition of EnGarde Secure Linux is completely free and open source, and online security and application updates are also freely available with GDSN registration. http://www.engardelinux.org/modules/index/register.cgi --- OSSEC HIDS v0.8 Available OSSEC HIDS is an Open Source Host-based Intrusion Detection System. It performs log analysis, integrity checking, rootkit detection, time-based alerting and active response. It runs on most operating systems, including Linux, OpenBSD, FreeBSD, Solaris and Windows. This is the first version offering native support for Windows (XP/2000/2003). It includes as well a new set of log analysis rules for sendmail, web logs (Apache and IIS), IDSs and Windows authentication events. The correlation rules for squid, mail logs, firewall events and authentication systems have been improved, now detecting scans, worms and internal attacks.The active-responses were also refined, with support to IPFW (FreeBSD) added. The installation process was re-organized, now including simpler configuration options and translation to 6 different languages (English, Portuguese, German, Turkish, Polish and Italian). To download the Unix and Windows versions: http://www.ossec.net/en/downloads.html More information: http://www.ossec.net/en/v08-2006-05-12.html Use our mailling list if you have questions or comments: http://www.ossec.net/en/mailing_lists.html --- EnGarde Secure Linux v3.0.6 Now Available Guardian Digital is happy to announce the release of EnGarde Secure Community 3.0.6 (Version 3.0, Release 6). This release includes several bug fixes and feature enhancements to the Guardian Digital WebTool and the SELinux policy, several updated packages, and a couple of new packages available for installation. The following reported bugs from bugs.engardelinux.org are fixed in this release: Read Article: http://www.linuxsecurity.com/content/view/122648/65/ ---------------------- 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. http://www.linuxsecurity.com/content/view/119415/49/ -------- --> Take advantage of the LinuxSecurity.com Quick Reference Card! --> http://www.linuxsecurity.com/docs/QuickRefCard.pdf +---------------------------------+ | Distribution: Debian | ----------------------------// +---------------------------------+ * Debian: New Mozilla Thunderbird packages fix several vulnerabilities 4th, May, 2006 Updated package. http://www.linuxsecurity.com/content/view/122674 * Debian: New cgiirc packages fix arbitrary code execution 8th, May, 2006 Updated package. http://www.linuxsecurity.com/content/view/122704 * Debian: New Mozilla packages fix arbitrary code execution 9th, May, 2006 Updated package. http://www.linuxsecurity.com/content/view/122714 * Debian: New TIFF packages fix denial of service and arbitrary code execution 9th, May, 2006 Updated package. http://www.linuxsecurity.com/content/view/122715 * Debian: New Mozilla Firefox packages fix arbitrary code execution 11th, May, 2006 Updated package. http://www.linuxsecurity.com/content/view/122741 +---------------------------------+ | Distribution: Gentoo | ----------------------------// +---------------------------------+ * Gentoo: rsync Potential integer overflow 6th, May, 2006 An attacker having write access to an rsync module might be able to execute arbitrary code on an rsync server. http://www.linuxsecurity.com/content/view/122699 * Gentoo: Mozilla Firefox Potential remote code execution 6th, May, 2006 The Mozilla Firefox 1.5 line is vulnerable to a buffer overflow in the JavaScript extension which may in theory lead to remote execution of arbitrary code. http://www.linuxsecurity.com/content/view/122700 * Gentoo: Nagios Buffer overflow 7th, May, 2006 Nagios is vulnerable to a buffer overflow which may lead to remote execution of arbitrary code. http://www.linuxsecurity.com/content/view/122701 +---------------------------------+ | Distribution: Mandriva | ----------------------------// +---------------------------------+ * Mandriva: Updated xorg-x11 packages fix vulnerability 5th, May, 2006 A problem was discovered in xorg-x11 where the X render extension would mis-calculate the size of a buffer, leading to an overflow that could possibly be exploited by clients of the X server. http://www.linuxsecurity.com/content/view/122687 * Mandriva: Updated cpio package fixes symlink bug in passthrough mode 9th, May, 2006 When using cpio in passthrough mode (i.e.: find dira|cpio -pdmv dirb) symbolic links are replaced with the actual files or directories they point to. Updated packages have been rebuilt with the correct CPPFLAGS to correct this issue. http://www.linuxsecurity.com/content/view/122723 * Mandriva: Updated gzip packages fix bug with zgrep passing options to grep 9th, May, 2006 The zgrep wrapper script does not correctly pass all available options that grep accepts to the grep binary. Updated packages have been patched to correct this issue. http://www.linuxsecurity.com/content/view/122730 * Mandriva: Updated gdm package fixes symlink attack vulnerability 10th, May, 2006 A race condition in daemon/slave.c in gdm before 2.14.1 allows local users to gain privileges via a symlink attack when gdm performs chown and chgrp operations on the .ICEauthority file. Packages have been patched to correct this issue. http://www.linuxsecurity.com/content/view/122731 * Mandriva: Updated MySQL packages fix several vulnerabilities 10th, May, 2006 The check_connection function in sql_parse.cc in MySQL 4.0.x up to 4.0.26, 4.1.x up to 4.1.18, and 5.0.x up to 5.0.20 allows remote attackers to read portions of memory via a username without a trailing null byte, which causes a buffer over-read. (CVE-2006-1516) sql_parse.cc in MySQL 4.0.x up to 4.0.26, 4.1.x up to 4.1.18, and 5.0.x up to 5.0.20 allows remote attackers to obtain sensitive information via a COM_TABLE_DUMP request with an incorrect packet length, which includes portions of memory in an error message. (CVE-2006-1517) Updated packages have been patched to correct these issues. http://www.linuxsecurity.com/content/view/122738 * Mandriva: Updated xine-ui packages fix format string vulnerabilities 10th, May, 2006 Multiple format string vulnerabilities in xiTK (xitk/main.c) in xine allow remote attackers to execute arbitrary code via format string specifiers in a long filename on an EXTINFO line in a playlist file. Packages have been patched to correct this issue. http://www.linuxsecurity.com/content/view/122740 +---------------------------------+ | Distribution: Red Hat | ----------------------------// +---------------------------------+ * RedHat: Important: xorg-x11 security update 4th, May, 2006 Updated X.org packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/122679 * RedHat: Important: libtiff security update 9th, May, 2006 Updated libtiff packages that fix several security flaws are now availabl for Red Hat Enterprise Linux. This update has been rated as having important security impact by the Red Hat Security Response Team. http://www.linuxsecurity.com/content/view/122717 * RedHat: Moderate: ruby security update 9th, May, 2006 Updated ruby packages that fix a denial of service issue 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/122719 +---------------------------------+ | Distribution: SuSE | ----------------------------// +---------------------------------+ * SuSE: php4,php5 various security problems 5th, May, 2006 This update fixes the following security issues in the scripting languages PHP4 and PHP5. http://www.linuxsecurity.com/content/view/122692 * SuSE: cyrus-sasl-digestmd5 denial of 5th, May, 2006 If a server or client is using DIGEST-MD5 authentication via the cyrus-sasl libraries it is possible to cause a denial of service attack against the other side (client or server) by leaving out the "realm=" header in the authentication. http://www.linuxsecurity.com/content/view/122693 ------------------------------------------------------------------------ Distributed by: Guardian Digital, Inc. 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