ClamAV confirms critical bug, offers up patch

The popular open-source antivirus scanner was vulnerable to exploits

A vulnerability in the popular open-source ClamAV anti-virus scanner can be exploited by attackers to execute malicious code, a security company announced Monday.

On Monday, the ClamAV team updated the scanner to fix the flaw.

According to Danish bug-tracking company Secunia, a vulnerability within the ""cli_scanpe()" function in "libclamav/pe.c" could be exploited with a rigged "Upack" file. In a warning posted Monday Secunia credited one of its own researchers, Alin Rad Pop, with finding and reporting the bug, and ranked the threat as "highly critical," its second-highest rating.

ClamAV is most often used to scan incoming files attachments at an e-mail gateway; although it's designed for UNIX, versions are available for Windows. Apple also packages ClamAV with its server operating systems, including the current production version of Mac OS X Server 10.5.

About a month ago, Apple issued a massive security update that fixed nearly 90 vulnerabilities in its operating systems, including nine ClamAV bugs present in Server 10.5, to bring Mac OS X's version in line with the still current ClamAV 0.90.3.

ClamAV version 0.93 patches the vulnerability disclosed today, and can be downloaded from the open-source project's Web site.

Prior to issuing the patch, ClamAV had remotely disabled the vulnerable module, said a ClamAV spokesman. "Note that 1 week ago the vulnerable module has been switched off via DCONF using a special CVD update so older installations cannot be exploited," said Luca Gibelli in an e-mail.

Users unable to deploy the patch who have also not updated ClamAV's signatures -- the program received those as CVD, or ClamAV Virus Database file -- should not scan untrusted PE (Portable Executable) files, Secunia recommended.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Gregg Keizer

Computerworld
Show Comments

Cool Tech

Breitling Superocean Heritage Chronographe 44

Learn more >

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?