Thank you for reading the Linux Advisory Watch Security Newsletter. The purpose of this document is to provide our readers with a quick summary of each week's vendor security bulletins and pointers on methods to improve the security posture of your open source system. Vulnerabilities affect nearly every vendor virtually every week, so be sure to read through to find the updates your distributor have made available.

LinuxSecurity.com Feature Extras:

Review: The Official Ubuntu Book - If you haven't used Linux before, are new to Ubuntu, or would like a quick update on the latest in open source advancements for the desktop, then The Official Ubuntu Book is a great place to start. Authored by a group of some of the most experienced open source administrators and developers, this 400-page user guide details everything you need to know about how to make the most of your Ubuntu, Kubuntu (Ubuntu with KDE), and Xubuntu (Ubuntu with Xfce) computer.

Review: Zabbix 1.8 Network Monitoring - If you have anything more than a small home network, you need to be monitoring the status of your systems to ensure they are providing the services they were designed to provide. Rihards Olups has created a comprehensive reference and usability guide for the latest version of Zabbix that anyone being tasked with implementing should have by their side.

Guardian Digital is happy to announce the release of EnGarde Secure Community 3.0.22 (Version 3.0, Release 22). This release includes many updated packages and bug fixes and some feature enhancements to the EnGarde Secure Linux Installer and the SELinux policy.
(Mar 4)

Philip Martin discovered that HTTP-based Subversion servers crash when processing lock requests on repositories which support unauthenticated read access. [More...]
(Mar 3)

Several vulnerabilities have been found in the Iceape internet suite, an unbranded version of Seamonkey: CVE-2010-1585 [More...]
(Mar 2)

Ansgar Burchardt discovered several vulnerabilities in DTC, a web control panel for admin and accounting hosting services. CVE-2011-0434 [More...]
(Mar 2)

It was discovered that pango did not check for memory allocation failures, causing a NULL pointer dereference with an adjustable offset. This can lead to application crashes and potentially arbitrary code execution. [More...]
(Mar 2)

It was discovered that python-webdav, a WebDAV server implementation, contains several SQL injection vulnerabilities in the processing of user credentials. [More...]
(Mar 1)

Several vulnerabilities have been discovered in the Common UNIX Printing System: CVE-2008-5183 [More...]
(Mar 1)

The changes in python-django DSA-2163 necessary to fix the issues CVE-2011-0696 and CVE-2011-0697 introduced an unavoidable backward incompatibility, which caused a regression in dajaxice, which depends on python-django. This update supplies fixed packages for [More...]
(Feb 28)

Volker Lendecke discovered that missing range checks in Samba's file descriptor handling could lead to memory corruption, resulting in denial of service. [More...]
(Feb 26)

It was discovered that avahi, an implementation of the zeroconf protocol, can be crashed remotely by a single UDP packet, which may result in a denial of service. [More...]
(Feb 26)

It was discovered that pam-pgsql, a PAM module to authenticate using a PostgreSQL database, was vulnerable to a buffer overflow in supplied IP-addresses. [More...]
Mandriva: 2011:040: pango (Mar 3)

A vulnerability has been found and corrected in pango: It was discovered that pango did not check for memory reallocation failures in hb_buffer_ensure() function. This could trigger a NULL pointer dereference in hb_buffer_add_glyph(), where possibly untrusted [More...]
Mandriva: 2011:039: webkit (Mar 2)

Multiple cross-site scripting, denial of service and arbitrary code execution security flaws were discovered in webkit. Please consult the CVE web links for further information. [More...]
Mandriva: 2011:038: samba (Feb 28)

A vulnerability has been found and corrected in samba: All current released versions of Samba are vulnerable to a denial of service caused by memory corruption. Range checks on file descriptors being used in the FD_SET macro were not present allowing stack [More...]
Mandriva: 2011:037: avahi (Feb 24)

A vulnerability has been found and corrected in avahi: avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this [More...]
Red Hat: 2011:0318-01: libtiff: Important Advisory (Mar 2)

Updated libtiff packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2011:0313-01: seamonkey: Critical Advisory (Mar 1)

Updated seamonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having critical [More...]
Red Hat: 2011:0311-01: thunderbird: Critical Advisory (Mar 1)

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having critical [More...]
Red Hat: 2011:0312-01: thunderbird: Moderate Advisory (Mar 1)

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:0309-01: pango: Critical Advisory (Mar 1)

Updated pango packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having critical [More...]
Red Hat: 2011:0310-01: firefox: Critical Advisory (Mar 1)

Updated firefox packages that fix several security issues and one bug are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having critical [More...]
Red Hat: 2011:0307-01: mailman: Moderate Advisory (Mar 1)

An updated mailman package that fixes multiple security issues is now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:0308-01: mailman: Moderate Advisory (Mar 1)

An updated mailman package that fixes multiple security issues is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:0306-01: samba3x: Important Advisory (Mar 1)

Updated samba3x packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2011:0305-01: samba: Important Advisory (Mar 1)

Updated samba packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2011:0303-01: kernel: Moderate Advisory (Mar 1)

Updated kernel packages that fix three security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate [More...]
(Mar 2)

New mozilla-firefox packages are available for Slackware 13.0, 13.1, and -current to fix security issues. [More Info...]
(Feb 28)

New samba packages are available for Slackware 10.0, 10.1, 10.2, 11.0, 12.0, 12.1, 12.2, 13.0, 13.1, and -current to fix a denial of service security issue. [More Info...]
(Feb 25)

New pidgin packages are available for Slackware 12.0, 12.1, 12.2, 13.0, 13.1, and -current to fix a security issue. [More Info...]
Ubuntu: 1050-1: Thunderbird vulnerabilities (Mar 2)

Jesse Ruderman, Igor Bukanov, Olli Pettay, Gary Kwong, Jeff Walden, HenrySivonen, Martijn Wargers, David Baron and Marcia Knous discovered severalmemory issues in the browser engine. An attacker could exploit these tocrash the browser or possibly run arbitrary code as the user invoking theprogram. (CVE-2011-0053, CVE-2011-0062) [More...]
Ubuntu: 1083-1: Linux kernel vulnerabilities (Mar 2)

Al Viro discovered a race condition in the TTY driver. A local attackercould exploit this to crash the system, leading to a denial of service.(CVE-2009-4895) [More...]
Ubuntu: 1080-2: Linux kernel vulnerabilities (Mar 2)

USN-1080-1 fixed vulnerabilities in the Linux kernel. This update providesthe corresponding updates for the Linux kernel for use with EC2. [More...]
Ubuntu: 1082-1: Pango vulnerabilities (Mar 2)

Marc Schoenefeld discovered that Pango incorrectly handled certain GlyphDefinition (GDEF) tables. If a user were tricked into displaying text witha specially-crafted font, an attacker could cause Pango to crash, resultingin a denial of service. This issue only affected Ubuntu 8.04 LTS and 9.10.(CVE-2010-0421) [More...]
Ubuntu: 1081-1: Linux kernel vulnerabilities (Mar 1)

It was discovered that KVM did not correctly initialize certain CPUregisters. A local attacker could exploit this to crash the system, leadingto a denial of service. (CVE-2010-3698) [More...]
Ubuntu: 1080-1: Linux kernel vulnerabilities (Mar 1)

Thomas Pollet discovered that the RDS network protocol did not checkcertain iovec buffers. A local attacker could exploit this to crash thesystem or possibly execute arbitrary code as the root user. (CVE-2010-3865) [More...]
Ubuntu: 1079-1: OpenJDK 6 vulnerabilities (Mar 1)

It was discovered that untrusted Java applets could create domainname resolution cache entries, allowing an attacker to manipulatename resolution within the JVM. (CVE-2010-4448) [More...]
Ubuntu: 1078-1: Logwatch vulnerability (Feb 28)

Dominik George discovered that logwatch did not properly sanitizelog file names that were passed to the shell as part of a command.If a remote attacker were able to generate specially crafted filenames(for example, via Samba logging), they could execute arbitrary codewith root privileges. [More...]
Ubuntu: 1074-2: Linux kernel vulnerabilities (Feb 28)

USN-1074-1 fixed vulnerabilities in linux-fsl-imx51 in Ubuntu 9.10. Thisupdate provides the corresponding updates for Ubuntu 10.04. [More...]
Ubuntu: 1075-1: Samba vulnerability (Feb 28)

Volker Lendecke discovered that Samba incorrectly handled certain filedescriptors. A remote attacker could send a specially crafted request tothe server and cause Samba to crash or hang, resulting in a denial ofservice. [More...]
Ubuntu: 1074-1: Linux kernel vulnerabilities (Feb 25)

Al Viro discovered a race condition in the TTY driver. A local attackercould exploit this to crash the system, leading to a denial of service.(CVE-2009-4895) [More...]
Ubuntu: 1073-1: Linux kernel vulnerabilities (Feb 25)

Gleb Napatov discovered that KVM did not correctly check certain privilegedoperations. A local attacker with access to a guest kernel could exploitthis to crash the host system, leading to a denial of service.(CVE-2010-0435) [More...]
Ubuntu: 1072-1: Linux vulnerabilities (Feb 25)

Gleb Napatov discovered that KVM did not correctly check certain privilegedoperations. A local attacker with access to a guest kernel could exploitthis to crash the host system, leading to a denial of service.(CVE-2010-0435) [More...]
Ubuntu: 1071-1: Linux kernel vulnerabilities (Feb 25)

Tavis Ormandy discovered that the Linux kernel did not properly implementexception fixup. A local attacker could exploit this to crash the kernel,leading to a denial of service. (CVE-2010-3086) [More...]
Pardus: 2011-54: Samba: Memory Corruption (Mar 3)

A vulnerability have been fixed in samba, which allows attackers to cause a denial of service.
Pardus: 2011-52: Gimp: Multiple Vulnerabilities (Feb 28)

Multiple vulnerabilities have been fixed in gimp.
Pardus: 2011-51: Php: Denial of Service (Feb 28)

A vulnerability have been fixed in php, which allows attackers to cause a denial of service.
Pardus: 2011-50: Wireshark: Buffer Overflow (Feb 28)

A vulnerability has been fixed in wireshark, which can be exploit by malicious people to cause a denial of service or to execute code.
Pardus: 2011-49: Ruby: Multiple Vulnerabilities (Feb 28)

Multiple vulnerabilities have been fixed in ruby.
Pardus: 2011-48: Mit-Kerberos: Multiple (Feb 28)

Multiple vulnerabilities have been fixed in mit-kerberos, which can be exploited by malicious people to cause a denial of service.