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:

Squid and Digest Authentication - Digest AuthenticationDigest Authentication hashes the password before transmitting over the wire. Essentially it sends a message digest generated from multiple items including username, realm and nonce value. If you want to know more see (RFC 2617).

Squid and Basic Authentication - This is perhaps the easiest authentication helper to configure in Squid, but also the most insecure. The biggest problem with Basic is it transmits username and password in clear text, hence very susceptible to network sniffing or man in the middle type attacks. The only reason I'm writing about it is it's a valid authentication mechanism in some limited circumstances. Secondly I want to show you how authentication has evolved over the years.

(Dec 7)

It was discovered that ChaSen, a Japanese morphological analysis system, contains a buffer overflow, potentially leading to arbitrary code execution in programs using the library. [More...]
(Dec 6)

Security Report Summary
(Dec 6)

It was discovered that Mojarra, an implementation of JavaServer Faces, evaluates untrusted values as EL expressions if includeViewParameters is set to true. [More...]
(Dec 5)

Several vulnerabilities have been discovered in OpenJDK, an implementation of the Java platform. This combines the two previous openjdk-6 advisories, DSA-2311-1 and DSA-2356-1. [More...]
(Dec 4)

Jon Larimer from IBM X-Force Advanced Research discovered multiple vulnerabilities in the DVI backend of the evince document viewer: CVE-2010-2640 [More...]
(Dec 1)

Several vulnerabilities have been discovered in OpenJDK, an implementation of the Java platform: CVE-2011-3389 [More...]
Mandriva: 2011:182: dhcp (Dec 8)

A vulnerability has been discovered and corrected in dhcp: dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) [More...]
Mandriva: 2011:181: proftpd (Dec 7)

A vulnerability was discovered and fixed in proftpd: Use-after-free vulnerability in the Response API in ProFTPD before 1.3.3g allows remote authenticated users to execute arbitrary code via vectors involving an error that occurs after an FTP data transfer [More...]
Red Hat: 2011:1807-01: jasper: Important Advisory (Dec 9)

Updated jasper packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2011:1801-01: qemu-kvm: Important Advisory (Dec 8)

Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 6.1 Extended Update Support. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2011:1797-01: perl: Moderate Advisory (Dec 8)

Updated perl packages that fix multiple security issues are 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: 2011:1791-01: squid: Moderate Advisory (Dec 6)

An updated squid 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 moderate [More...]
Red Hat: 2011:1790-01: krb5: Moderate Advisory (Dec 6)

Updated krb5 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 moderate [More...]
Red Hat: 2011:1777-01: qemu-kvm: Important Advisory (Dec 6)

Updated qemu-kvm 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 [More...]
Red Hat: 2011:1694-03: libcap: Low Advisory (Dec 6)

Updated libcap packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1581-03: ruby: Low Advisory (Dec 6)

Updated ruby packages that fix two security issues, various bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1749-03: libxml2: Low Advisory (Dec 6)

Updated libxml2 packages that fix several security issues and various bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1741-03: php-pear: Low Advisory (Dec 6)

An updated php-pear package that fixes one security issue and multiple bugs is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1691-03: util-linux-ng: Low Advisory (Dec 6)

Updated util-linux-ng packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. [More...]
Red Hat: 2011:1580-03: resource-agents: Low Advisory (Dec 6)

An updated resource-agents package that fixes one security issue, several bugs, and adds multiple enhancements is now available for Red Hat Enterprise Linux 6. [More...]
Red Hat: 2011:1536-03: sos: Low Advisory (Dec 6)

An updated sos package that fixes one security issue, several bugs, and adds various enhancements is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1635-03: cups: Low Advisory (Dec 6)

Updated cups packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1532-03: kexec-tools: Moderate Advisory (Dec 6)

An updated kexec-tools package that fixes three security issues, various bugs, and adds enhancements is now available for Red Hat Enterprise Linux 6. [More...]
Red Hat: 2011:1534-03: nfs-utils: Low Advisory (Dec 6)

Updated nfs-utils packages that fix two security issues, various bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1531-03: qemu-kvm: Moderate Advisory (Dec 6)

Updated qemu-kvm packages that fix one security issue, multiple bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:1615-03: virt-v2v: Low Advisory (Dec 6)

An updated virt-v2v package that fixes one security issue and several bugs is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1533-04: ipa: Moderate Advisory (Dec 6)

Updated ipa packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:1526-03: glibc: Low Advisory (Dec 6)

Updated glibc packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
Red Hat: 2011:1780-01: tomcat6: Moderate Advisory (Dec 5)

Updated tomcat6 packages that fix several security issues and one bug are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:1507-01: libarchive: Moderate Advisory (Dec 1)

Updated libarchive packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2011:1508-01: cyrus-imapd: Moderate Advisory (Dec 1)

Updated cyrus-imapd packages that fix two security issues are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Ubuntu: 1296-1: acpid vulnerabilities (Dec 8)

Several security issues were fixed in acpid.
Ubuntu: 1294-1: Linux kernel (Oneiric backport) vulnerabilities (Dec 8)

Several security issues were fixed in the kernel.
Ubuntu: 1293-1: Linux kernel vulnerabilities (Dec 8)

Several security issues were fixed in the kernel.
Ubuntu: 1292-1: Linux kernel (Maverick backport) vulnerabilities (Dec 8)

Several security issues were fixed in the kernel.
Ubuntu: 1291-1: Linux kernel vulnerabilities (Dec 8)

Several security issues were fixed in XXX-APP-XXX.
Ubuntu: 1290-1: Kerberos vulnerability (Dec 7)

The Kerberos Key Distribution Center (KDC) could be made to crash.
Ubuntu: 1289-1: colord vulnerability (Dec 7)

colord could be made to modify databases.
Ubuntu: 1287-1: Linux (OMAP4) vulnerability (Dec 5)

The system could be made to crash under certain conditions.
Ubuntu: 1286-1: Linux kernel vulnerabilities (Dec 2)

Several security issues were fixed in the kernel.