Samba developers quash serious bug

Samba developers have fixed a critical bug in their popular Linux file-and-print software.

Users of the open-source Samba software are being urged to patch their code following the discovery of a critical bug in the file-and-print software.

The bug is one of three vulnerabilities that were patched Monday by the Samba team in the Samba 3.0.25 release.

The flaw is considered to be particularly worrisome for two reasons: It could be remotely exploited by an attacker to run unauthorized code on the Samba server and there is no known work-around for the flaw. Samba ships with Linux and Unix operating systems and is a popular way of allowing Windows clients to print and store files using a Linux or Unix machine.

It's been a few years since Samba has had to fix this kind of vulnerability, which is due to a coding error affecting the way Samba puts data into the computer's memory, said Samba developer Jeremy Allison. "This kind of bug is rare for us," he said Monday in an e-mail interview. "That's why we're embarrassed."

Still, there is no known exploit code for the problem, and even if there were, an attacker would first have to find a way to reach a Samba server via Microsoft's Remote Procedure Call (RPC) service, which is typically blocked by the firewall.

The flaw could give attackers a way to jump from a compromised Windows computer to a Samba server, said David Endler, director of security research at 3Com's TippingPoint division, which first reported the flaw. "The real danger here is if an exploit is developed, it could be integrated into the latest botnet software," he said.

Endler added that he would be "surprised" if an exploit for the problem were not developed over the next few weeks.

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Robert McMillan

IDG News Service
Show Comments

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers


This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang


It really doesn’t get more “gaming laptop” than this.

Jack Jeffries


As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr


The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?