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Linux Advisory Watch - July 29, 2005

By Benjamin D. Thomas on July 29, 2005 (8:00:00 AM)

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This week, perhaps the most interesting articles include cacti, heimdal, webcalendar, ekg, phpbb2, setarch, openoffice, pvm, fetchmail, mozilla,devhelp, yelp, subversion, zlib, kdenetwork, perl, module-init-tools, mgetty, system-config-netboot, libsepol, gnbc-kernel, dlm-kernel, cman-kernel, util-linux, tar, gcc, libtool, audit, zlib, apr, pam_ldap, fetchmail, sandbox, Koptete, Clam, Ethereal, cpio, kdenetwork, httpd, and dhcpd. The distributors include Debian, Fedora, Gentoo, and Red Hat.
Network Intrusion Prevention Systems – When They’re Valuable, and When They’re Not and When They’re Not
By: Daniel Miessler

Anyone keeping track of the security vendor/technology hype knows that IPS has quickly replaced IDS as the "next big thing". Depending on who you are, you may chalk this up to yet another infosec fad, or you could be of the opinion that IPS is actually making good on the promises that IDS never lived up to. I think it can be both – depending on your situation.

What NIPS Isn’t

First and foremost, NIPS is not a tool for stopping elite crackers. That may be how it’s being marketed, but it’s crap. If you’re the type to fall for that sort of hype then you’re probably in a lot more danger than any given technology can help you with.

Whether or not IPS is worthless or a godsend to your organization hinges on a single question – "How good is your organization at staying patched?" This is the single question that organizations need to be asking themselves when considering network intrusion prevention technology.

The reason this question matters is because of the fact that NIPS only protects you against vulnerabilities that you can mitigate by applying patches and/or implementing other controls. If you are a relatively small organization with a highly technical administrative/security staff that keeps your systems constantly patched and locked down, a network IPS can’t offer you much of anything. Despite claims to the contrary, a network IPS system is about as good at stopping zero-day attacks as wordpad.exe.

Remember, stout security teams knows their systems. They read advisories daily and know what’s in the wild and what’s likely to be there soon. A team like this can more than likely patch their systems and/or mitigate the risk to their organization in other ways before a NIPS vendor can release a signature for their product. The benefit gained from someone blocking exploits at the perimeter at that point is virtually null. In short, anything that’s going to compromise a fully patched and locked down system is going to walk right through a NIPS as well.

Read Entire Article:
http://www.linuxsecurity.com/content/view/119888/49/

 

LinuxSecurity.com Feature Extras:

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.

Introduction: Buffer Overflow Vulnerabilities - Buffer overflows are a leading type of security vulnerability. This paper explains what a buffer overflow is, how it can be exploited, and what countermeasures can be taken to prevent the use of buffer overflow vulnerabilities.

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.

 

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 cacti packages fix several vulnerabilities
  21st, July, 2005

Several vulnerabilities have been discovered in cacti, a round-robin database (RRD) tool that helps create graphs from database information.
 
  Debian: New webcalendar package fixes information disclosure
  27th, July, 2005

Updated package.
 
  Debian: New heimdal packages fix arbitrary code execution
  27th, July, 2005

Updated package.
 
  Debian: New ekg packages fix arbitrary code execution
  27th, July, 2005

Updated package.
 
  Debian: New phpbb2 packages fix cross-site scripting
  27th, July, 2005

Updated package.
 
   Fedora
  Fedora Core 4 Update: setarch-1.8-1.FC4
  21st, July, 2005

Bugfix package release.
 
  Fedora Core 4 Update: openoffice.org-1.9.117-3.1.0.fc4
  21st, July, 2005

Updated package released.
 
  Fedora Core 3 Update: pvm-3.4.5-5_FC3
  21st, July, 2005

Updated package released.
 
  Fedora Core 4 Update: pvm-3.4.5-5_FC4
  21st, July, 2005

Updated package released.
 
  Fedora Core 4 Update: fetchmail-6.2.5-7.fc4.1
  21st, July, 2005

A buffer overflow was discovered in fetchmail's POP3 client. A malicious server could cause fetchmail to execute arbitrary code. The Common Vulnerabilities and Exposures project has assigned the name CAN-2005-2355 to this issue. All fetchmail users should upgrade to the updated package, which fixes this issue.
 
  Fedora Core 3 Update: fetchmail-6.2.5-7.fc3.1
  21st, July, 2005

A buffer overflow was discovered in fetchmail's POP3 client. A malicious server could cause fetchmail to execute arbitrary code. The Common Vulnerabilities and Exposures project has assigned the name CAN-2005-2355 to this issue. All fetchmail users should upgrade to the updated package, which fixes this issue.
 
  Fedora Core 3 Update: mozilla-1.7.10-1.3.1
  22nd, July, 2005

Package repairs various vulnerabilities.
 
  Fedora Core 3 Update: epiphany-1.4.4-4.3.5
  22nd, July, 2005

There were several security flaws found in the mozilla package, which epiphany depends on. Users of epiphany are advised to upgrade to this updated package which has been rebuilt against a version of mozilla not vulnerable to these flaws.
 
  Fedora Core 3 Update: devhelp-0.9.2-2.3.5
  22nd, July, 2005

There were several security flaws found in the mozilla package, which devhelp depends on. Users of devhelp are advised to upgrade to this updated package which has been rebuilt against a version of mozilla not vulnerable to these flaws.
 
  Fedora Core 4 Update: mozilla-1.7.10-1.5.1
  22nd, July, 2005

Package repairs various vulnerabilities.
 
  Fedora Core 4 Update: epiphany-1.6.3-2
  22nd, July, 2005

There were several security flaws found in the mozilla package, which epiphany depends on. Users of epiphany are advised to upgrade to this updated package which has been rebuilt against a version of mozilla not vulnerable to these flaws.
 
  Fedora Core 4 Update: devhelp-0.10-1.4.1
  22nd, July, 2005

There were several security flaws found in the mozilla package, which devhelp depends on. Users of devhelp are advised to upgrade to this updated package which has been rebuilt against a version of mozilla not vulnerable to these flaws.
 
  Fedora Core 4 Update: yelp-2.10.0-1.4.1
  22nd, July, 2005

There were several security flaws found in the mozilla package, which yelp depends on. Users of yelp are advised to upgrade to this updated package which has been rebuilt against a version of mozilla not vulnerable to these flaws.
 
  Fedora Core 4 Update: subversion-1.2.1-2.1
  22nd, July, 2005

This update contains the latest release of Subversion. Subversion 1.2 adds support for locking (reserved checkouts), and includes many bug fixes and improvements.
 
  Fedora Core 4 Update: zlib-1.2.2.2-5.fc4
  22nd, July, 2005

Fix zlib buffer overflow.
 
  Fedora Core 3 Update: zlib-1.2.1.2-3.fc3
  22nd, July, 2005

Fix zlib buffer overflow.
 
  Fedora Core 4 Update: kdenetwork-3.4.1-0.fc4.2
  22nd, July, 2005

Multiple integer overflow flaws were found in the way Kopete processes Gadu-Gadu messages. A remote attacker could send a specially crafted Gadu-Gadu message which would cause Kopete to crash or possibly execute arbitrary code.
 
  Fedora Core 3 Update: kdenetwork-3.3.1-3.2
  22nd, July, 2005

Multiple integer overflow flaws were found in the way Kopete processes Gadu-Gadu messages. A remote attacker could send a specially crafted Gadu-Gadu message which would cause Kopete to crash or possibly execute arbitrary code.
 
  Fedora Core 3 Update: perl-5.8.5-14.FC3
  22nd, July, 2005

Paul Szabo discovered another vulnerability in the File::Path::rmtree function of perl, the popular scripting language. When a process is deleting a directory tree, a different user could exploit a race condition to create setuid binaries in this directory tree, provided that he already had write permissions in any subdirectory of that tree. Perl interpreter would cause a segmentation fault when environment changes during the runtime. Code in lib/FindBin contained a regression which caused problems with MRTG software package.
 
  Fedora Core 4 Update: module-init-tools-3.1-4
  22nd, July, 2005

This fixes a crash in depmod when encountering certain misbuilt modules.
 
  Fedora Core 3 Update: mgetty-1.1.31-3_FC3
  22nd, July, 2005

Updated package.
 
  Fedora Core 4 Update: system-config-netboot-0.1.22-1_FC4
  22nd, July, 2005

Updated package.
 
  Fedora Core 3 Update: system-config-netboot-0.1.22-1_FC3
  22nd, July, 2005

Update package.
 
  Fedora Core 4 Update: setools-2.1.1-2
  24th, July, 2005

Updated package.
 
  Fedora Core 4 Update: nfs-utils-1.0.7-10
  24th, July, 2005

Updated package.
 
  Fedora Core 4 Update: libsepol-1.5.10-1.1
  25th, July, 2005

Updated package.
 
  Fedora Core 4 Update: gnbd-kernel-2.6.11.2-20050420.133124.FC4.43
  25th, July, 2005

Updated package.
 
  Fedora Core 4 Update: dlm-kernel-2.6.11.5-20050601.152643.FC4.10
  25th, July, 2005

Updated package.
 
  Fedora Core 4 Update: cman-kernel-2.6.11.5-20050601.152643.FC4.9
  25th, July, 2005

Updated package.
 
  Fedora Core 4 Update: GFS-kernel-2.6.11.8-20050601.152643.FC4.9
  25th, July, 2005

Updated package.
 
  Fedora Core 4 Update: gnome-panel-2.10.1-10.2
  26th, July, 2005

Updated package.
 
  Fedora Core 4 Update: system-config-printer-0.6.131.3-1
  26th, July, 2005

This release fixes an unwanted interaction with SELinux when writing configuration files, and adds preliminary support for a future HPLIP package.
 
  Fedora Core 3 Update: util-linux-2.12a-24.4
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: tar-1.15.1-7.FC4
  27th, July, 2005

Updated package.
 
  Fedora Core 3 Update: tar-1.14-5.FC3
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: util-linux-2.12p-9.7
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: gcc-4.0.1-4.fc4
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: libtool-1.5.16.multilib2-2
  27th, July, 2005

This update needs to accompany gcc-4.0.1 update.
 
  Fedora Core 3 Update: gcc-3.4.4-2.fc3
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: system-config-bind-4.0.0-20_FC4
  27th, July, 2005

Updated package.
 
  Fedora Core 3 Update: system-config-bind-4.0.0-20
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: mgetty-1.1.33-3_FC4
  27th, July, 2005

Updated package.
 
  Fedora Core 3 Update: mgetty-1.1.31-4_FC3
  27th, July, 2005

Updated package.
 
  Fedora Core 4 Update: apr-0.9.6-3.1
  27th, July, 2005

This update includes an updated libtool script to synchronize with the gcc 4.0.1 update.
 
  Fedora Core 4 Update: audit-0.9.19-2.FC4
  27th, July, 2005

This update quietens some error messages, fixes support for long file names, and allows 32 bit machines to search in logs created by 64 bit kernel.
 
   Gentoo
  Gentoo: zlib Buffer overflow
  22nd, July, 2005

zlib is vulnerable to a buffer overflow which could potentially lead to execution of arbitrary code.
 
  Gentoo: Shorewall Security policy bypass
  22nd, July, 2005

A vulnerability in Shorewall allows clients authenticated by MAC address filtering to bypass all other security rules.
 
  Gentoo: Mozilla Thunderbird Multiple vulnerabilities
  24th, July, 2005

Several vulnerabilities in Mozilla Thunderbird allow attacks ranging from execution of script code with elevated privileges to information leak.
 
  Gentoo: pam_ldap and nss_ldap Plain text authentication
  24th, July, 2005

pam_ldap and nss_ldap fail to restart TLS when following a referral, possibly leading to credentials being sent in plain text.
 
  Gentoo: fetchmail Buffer Overflow
  25th, July, 2005

fetchmail is susceptible to a buffer overflow resulting in a Denial of Service or arbitrary code execution.
 
  Gentoo: sandbox Insecure temporary file handling
  25th, July, 2005

The sandbox utility may create temporary files in an insecure manner.
 
  Gentoo: Kopete Vulnerability in included Gadu library
  25th, July, 2005

Kopete is vulnerable to several input validation vulnerabilities which may lead to execution of arbitrary code.
 
  Gentoo: Mozilla Suite Multiple vulnerabilities
  26th, July, 2005

Several vulnerabilities in the Mozilla Suite allow attacks ranging from the execution of javascript code with elevated privileges to information leakage.
 
  Gentoo: Clam AntiVirus Integer overflows
  26th, July, 2005

Clam AntiVirus is vulnerable to integer overflows when handling several file formats, potentially resulting in the execution of arbitrary code.
 
  Gentoo: GNU Gadu, CenterICQ, Kadu, EKG, libgadu Remote code execution in Gadu library
  27th, July, 2005

GNU Gadu, CenterICQ, Kadu, EKG and libgadu are vulnerable to an integer overflow which could potentially lead to the execution of arbitrary code or a Denial of Service.
 
  Gentoo: Ethereal Multiple vulnerabilities
  28th, July, 2005

Ethereal is vulnerable to numerous vulnerabilities potentially resulting in the execution of arbitrary code or abnormal termination.
 
   Red Hat
  RedHat: Important: firefox security update
  21st, July, 2005

An updated firefox package that fixes various security bugs is 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.
 
  RedHat: Low: cpio security update
  21st, July, 2005

An updated cpio package that fixes multiple issues is now available. This update has been rated as having low security impact by the Red Hat Security Response Team.
 
  RedHat: Important: zlib security update
  21st, July, 2005

Updated zlib packages that fix a buffer overflow 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.
 
  RedHat: Important: thunderbird security update
  21st, July, 2005

Updated thunderbird package that fixes various bugs is 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.
 
  RedHat: Critical: kdenetwork security update
  21st, July, 2005

Updated kdenetwork packages to correct a security flaw in Kopete 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.
 
  RedHat: Important: mozilla security update
  22nd, July, 2005

Updated mozilla packages that fix various security issues are now available. This update has been rated as having important security impact by the Red Hat Security Response Team.
 
  RedHat: Moderate: httpd security update
  25th, July, 2005

Updated Apache httpd packages to correct two security issues are now available for Red Hat Enterprise Linux 3 and 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
 
  RedHat: Important: fetchmail security update
  25th, July, 2005

Updated fetchmail packages that fix a security flaw are now available. This update has been rated as having important security impact by the Red Hat Security Response Team.
 
  RedHat: Moderate: dhcpcd security update
  27th, July, 2005

An updated dhcpcd package that fixes a denial of service issue is now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
 
  RedHat: Moderate: kdelibs security update
  27th, July, 2005

Updated kdelibs packages are now available for Red Hat Enterprise Linux 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
 

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blocked ip

Posted by: Administrator on August 01, 2005 07:01 AM
blocked ip adress 192.168.1.103

#

Re:blocked ip

Posted by: Administrator on August 01, 2005 07:05 AM
blocked adress ip 192.168.1.254

#

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