Feeds

AVG update nails down stability bugs

Engine upgrade follows LinkScanner traffic spew fix

Securing Web Applications Made Simple and Scalable

AVG has published an engine upgrade to its popular anti-virus scanning software that addresses a raft of stability bugs.

The update, published Tuesday, addresses a bug that means the scanner is liable to crash when scanning malformed UPX compressed executable files. More significantly version 8.0.156 of the software fixes glitches introduced around the same time AVG modified the LinkScanner Search-Shield component of its software on 9 July so that it didn't scan every page returned by a search query.

LinkScanner pre-scanned each result shown in a link with a user agent disguised so that it appeared to come from a IE6 user. These scan results were difficult to distinguish from regular traffic because they came from whatever IP address an AVG 8 user happened to have. This traffic-spewing behaviour created overinflated site visitor statistics for sites that appeared high in search engine results pages. It also ratcheted up bandwidth costs for websites.

In response to these criticisms, AVG said on 9 July that its LinkScanner software would only scan links clicked on by users (Active Surf-Shield).

This change and other recent tweaks introduced update crash bugs and around 30 other flaws addressed by the AVG 8.0.156 program update. The software fixes the anti-virus engine that powers AVG rather than simply adding new malware definitions. More detail in AVG's advisory here. ®

The smart choice: opportunity from uncertainty

More from The Register

next story
Putin: Crack Tor for me and I'll make you a MILLIONAIRE
Russian Interior Ministry offers big pile o' roubles for busting pro-privacy browser
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.