Feeds

Unholy trinity puts users in a BIND

DNS flaws threaten Net stability, again

  • alert
  • submit to reddit

The Essential Guide to IT Transformation

Multiple vulnerabilities in older versions of BIND could lead to compromise and denial of service attacks against vulnerable Domain Name System servers, security tools vendor ISS warned last night.

The companies advises of three remotely exploitable flaws affecting BIND (Berkeley Internet Name Domain Server) 4 and BIND 8. The latest version of BIND, version 9, is immune to the problems. BIND 4 and 8 are still very widely deployed, however, making the flaws a real threat to overall Internet stability.

The vulnerabilities are: BIND SIG cached RR overflow flaw, which affects BIND 8, versions up to and including 8.3.3-REL and BIND 4, versions up to and including 4.9.10-REL; a BIND OPT DoS, affecting BIND 8, versions 8.3.0 up to and including 8.3.3-REL and a BIND SIG Expiry Time DoS, again hitting BIND 8, versions up to and including 8.3.3-REL. There's more detail of these flaws in ISS' advisory here.

Although there are no reports of active attacks using these particular bugs, ISS warns the flaws might lend themselves to automated attacks.

"Since the vulnerability is widespread, an Internet worm may be developed to propagate by exploiting
the flaws in BIND," it warns. "Widespread attacks against the DNS system may lead to general instability and inaccuracy of DNS data."

Users are advised to upgrade to BIND version 4.9.11, 8.2.7, 8.3.4 or to BIND version 9. These versions will be available soon here.

BIND is the most common implementation of the DNS protocol, is used on the vast majority of DNS servers on the Internet. DNS is an important Internet protocol that mediates links between a database of easy-to-remember domain names (host names) and their corresponding numerical IP addresses. ®

Build a business case: developing custom apps

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Israel's Iron Dome missile tech stolen by Chinese hackers
Corporate raiders Comment Crew fingered for attacks
Tor attack nodes RIPPED MASKS off users for 6 MONTHS
Traffic confirmation attack bared users' privates - but to whom?
Multipath TCP speeds up the internet so much that security breaks
Black Hat research says proposed protocol will bork network probes, flummox firewalls
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
prev story

Whitepapers

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.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.