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:

Securing a Linux Web Server - With the significant prevalence of Linux web servers globally, security is often touted as a strength of the platform for such a purpose. However, a Linux based web server is only as secure as its configuration and very often many are quite vulnerable to compromise. While specific configurations vary wildly due to environments or specific use, there are various general steps that can be taken to insure basic security considerations are in place.

Password guessing with Medusa 2.0 - Medusa was created by the fine folks at foofus.net, in fact the much awaited Medusa 2.0 update was released in February of 2010. For a complete change log please visit

(Sep 29)

Kingcope discovered that the mod_sftp and mod_sftp_pam modules of proftpd, a powerful modular FTP/SFTP/FTPS server, are not properly validating input, before making pool allocations. An attacker can use this flaw to conduct denial of service attacks against the system [More...]
(Sep 27)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leak or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems: [More...]
(Sep 26)

Davfs2, a filesystem client for WebDAV, calls the function system() insecurely while is setuid root. This might allow a privilege escalation. For the oldstable distribution (squeeze), this problem has been fixed in [More...]
(Sep 25)

Daniel P. Berrange discovered that incorrect memory handling in the remoteDispatchDomainMemoryStats() function could lead to denial of service. [More...]
(Sep 24)

It was discovered that PyOpenSSL, a Python wrapper around the OpenSSL library, does not properly handle certificates with NULL characters in the Subject Alternative Name field. [More...]
(Sep 23)

Multiple security issues have been found in Icedove, Debian's version of the Mozilla Thunderbird mail and news client. Multiple memory safety errors and buffer overflows may lead to the execution of arbitrary code. [More...]
(Sep 27)

Multiple vulnerabilities have been found in Xen, allowing attackers on a Xen Virtual Machine to execute arbitrary code, cause Denial of Service, or gain access to data on the host.
(Sep 27)

Multiple vulnerabilities have been found in Mozilla Firefox, Thunderbird, and SeaMonkey, some of which may allow a remote user to execute arbitrary code.
(Sep 27)

Multiple vulnerabilities have been found in Squid, possibly resulting in remote Denial of Service.
(Sep 26)

A vulnerability in klibc could allow remote attackers to execute arbitrary shell code.
(Sep 26)

Multiple vulnerabilities have been found in Dropbear, the worst of which could lead to arbitrary code execution.
(Sep 25)

A vulnerability in TPP might allow a remote attacker to execute arbitrary code.
(Sep 25)

Multiple vulnerabilities have been found in libvirt, allowing remote attackers to execute arbitrary code or cause Denial of Service.
(Sep 25)

Multiple vulnerabilities have been discovered in Monkey HTTP Daemon, the worst of which could result in arbitrary code execution.
(Sep 24)

Multiple vulnerabilities have been reported in Chromium and V8, some of which may allow execution of arbitrary code.
(Sep 24)

Multiple vulnerabilities have been found in ProFTPD, the worst of which leading to remote execution of arbitrary code.
(Sep 24)

Multiple vulnerabilities have been reported in MoinMoin, the worst of which may allow execution of arbitrary code.
(Sep 24)

Multiple vulnerabilities have been found in GNU ZRTP, some of which may allow execution of arbitrary code.
(Sep 23)

Multiple vulnerabilities have been discovered in Apache HTTP Server, possibly allowing remote attackers to execute arbitrary code, cause a Denial of Service condition or perform man-in-the-middle attacks.
(Sep 23)

Multiple vulnerabilities have been found in Subversion, allowing attackers to cause a Denial of Service, escalate privileges, or obtain sensitive information.
Mandriva: 2013:244: davfs2 (Sep 30)

A vulnerability has been discovered and corrected in davfs2: Davfs2, a filesystem client for WebDAV, calls the function system() insecurely while is setuid root. This might allow a privilege escalation (CVE-2013-4362). [More...]
Mandriva: 2013:243: polkit (Sep 27)

Updated polkit packages fix security vulnerability: A race condition was found in the way the PolicyKit pkcheck utility checked process authorization when the process was specified by its process ID via the --process option. A local user could use this [More...]
Mandriva: 2013:242: kernel (Sep 26)

Multiple vulnerabilities has been found and corrected in the Linux kernel: Multiple array index errors in drivers/hid/hid-core.c in the Human Interface Device (HID) subsystem in the Linux kernel through 3.11 [More...]
Mandriva: 2013:241: perl-Crypt-DSA (Sep 25)

A vulnerability has been discovered and corrected in perl-Crypt-DSA: The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for remote attackers to spoof a signature, or determine [More...]
Mandriva: 2013:240: glpi (Sep 25)

Updated glpi package fixes security vulnerabilities: Multiple security vulnerabilities due to improper sanitation of user input in GLPI before versions 0.83.9 (CVE-2013-2226), 0.83.91 (CVE-2013-2225), and 0.84.2 (CVE-2013-5696). [More...]
Red Hat: 2013:1292-01: kernel: Moderate Advisory (Sep 26)

Updated kernel packages that fix multiple 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...]
Red Hat: 2013:1285-01: openstack-keystone: Moderate Advisory (Sep 25)

Updated openstack-keystone packages that fix one security issue are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:1284-01: ruby193-puppet: Critical Advisory (Sep 24)

Updated ruby193-puppet packages that fix three security issues are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having critical [More...]
Red Hat: 2013:1283-01: puppet: Moderate Advisory (Sep 24)

Updated puppet packages that fix several security issues are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:1282-01: rtkit: Important Advisory (Sep 24)

An updated rtkit package that fixes one security issue is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having [More...]
(Sep 29)

New seamonkey packages are available for Slackware 14.0 and -current to fix security issues. [More Info...]
Ubuntu: 1976-1: Linux kernel vulnerabilities (Sep 30)

Several security issues were fixed in the kernel.
Ubuntu: 1979-1: txt2man vulnerability (Sep 30)

txt2man could be made to overwrite files.
Ubuntu: 1980-1: Vino vulnerability (Sep 30)

Vino could be made to hang if it received specially crafted networktraffic.
Ubuntu: 1978-1: libKDcraw vulnerabilities (Sep 30)

libKDcraw could be made to crash if it opened a specially crafted file.
Ubuntu: 1977-1: Linux kernel (EC2) vulnerabilities (Sep 30)

Several security issues were fixed in the kernel.
Ubuntu: 1968-1: Linux kernel vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1975-1: Linux kernel (OMAP4) vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1972-1: Linux kernel vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1973-1: Linux kernel (OMAP4) vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1974-1: Linux kernel vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1971-1: Linux kernel (Raring HWE) vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1970-1: Linux kernel (Quantal HWE) vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1969-1: Linux kernel (OMAP4) vulnerabilities (Sep 27)

Several security issues were fixed in the kernel.
Ubuntu: 1967-1: Django vulnerabilities (Sep 24)

Several security issues were fixed in Django.
Ubuntu: 1966-1: Samba vulnerability (Sep 24)

Samba could be made to hang if it received specially crafted networktraffic.
Ubuntu: 1965-1: pyOpenSSL vulnerability (Sep 23)

Fraudulent security certificates could allow sensitive information to beexposed when accessing the Internet.
Ubuntu: 1964-1: LibRaw vulnerabilities (Sep 23)

LibRaw could be made to crash if it opened a specially crafted file.