ep's blog

Privacy Changes for Facebook


Facebook founder Mark Zuckerberg wrote an open letter describing some changes to the privacy of Facebook accounts (linked from above article).  It appears that regional networks are going to disappear, which may end up disclosing more information than you had intended.  He suggests that all Facebook users review their account privacy settings and update them accordingly.


BlackBerry Attachment Service PDF Distiller Multiple Remote Code Execution Vulnerabilities


"BlackBerry Attachment Service is prone to multiple remote
code-execution vulnerabilities when handling specially crafted PDF files.

Attackers can leverage these issues to corrupt memory and execute
arbitrary code in the context of the vulnerable service, possibly with
SYSTEM-level privileges. Successful exploits will compromise the server.
Failed attacks will likely result in denial-of-service conditions. "

Linux Kernel 'net/mac80211/' Multiple Remote Denial of Service Vulnerabilities


"The Linux Kernel is prone to multiple remote denial-of-service

An attacker can exploit these issues to cause a kernel panic, denying
service to legitimate users."

It should be noted that this affects the mac80211 code in the kernel
which deals specifically with the 802.11 wireless lan standard.

ldd arbitrary code execution


Seasoned Unix admins may already know the pitfalls of blindly running
ldd on unknown executables. However, since this article was recently
released, I thought it might be good as a reminder to everyone to be
careful when using it.

This article shows some techniques on how to cause ldd to run arbitrary
code, and how easy it is to trick a sysadmin into executing that code as

VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components


"1. Summary

Updated Java JRE packages and Tomcat packages address several security
issues. Updates for the ESX Service Console and vMA include kernel,
ntp, Python, bind libxml, libxml2, curl and gnutil packages. ntp is
also updated for ESXi userworlds.

MySQL OpenSSL Server Certificate yaSSL Security Bypass Vulnerability


"MySQL is prone to a security-bypass vulnerability.

An attacker can exploit this issue to bypass certain security
restrictions and obtain sensitive information that may lead to further

Versions prior to MySQL 5.1.41 are vulnerable."

It is recommended to update to the latest version of MySQL as soon as

ClamAV Prior to 0.95.2 Multiple Scanner Bypass Vulnerabilities


"ClamAV is prone to multiple vulnerabilities because it fails to
properly restrict certain files after scanning them.

A successful attack may allow malicious users to bypass security
restrictions placed on certain files. Exploits may aid in further attacks.

Versions prior to ClamAv 0.95.2 are vulnerable."

It is recommended to update ClamAv to the latest version.

Reflections on Cybersecurity from Science Magazine


Science Magazine published this reflection on Cybersecurity in the November 13 issue of their magazine.  It goes over some great topics in security, such as Defense in Depth and the concerns of not protecting the inside of your network.

I agree with the major points of the article and think it is a good read.

Thanks to Momota for passing the article my way.