Feeds

Running OpenSSL? Patch now to fix CRITICAL bug

'Heartbleed' leaks data from memory

Next gen security for virtualised datacentres

Sysadmins using the OpenSSL cryptographic library have an urgent job: patching a memory leak vulnerability that could reveal user IDs and passwords.

Dubbed “Heartbleed”, the vulnerability was discovered by Google Security's Neel Mehta and announced by CloudFlare.

As the terse OpenSSL advisory states: “A missing bounds check in the handling of the TLS heartbeat extension can be used to reveal up to 64k of memory to a connected client or server.”

A Q&A posted here by Codenomicon states that: “This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names and passwords of the users and the actual content. This allows attackers to eavesdrop communications, steal data directly from the services and users and to impersonate services and users.”

Codenomicon notes that the bug has been “in the wild” since March 2012. More conservative sites, the Q&A notes, will be running older branches like 1.0.0 or 0.9.8 that aren't vulnerable.es the bug.

The fixed version is OpenSSL 1.0.1g. If you're stuck with a previous version of OpenSSL for some reason, you can block the vulnerability by re-compiling it using the OPENSSL_NO_HEARTBEATS flag. OpenSSL 1.0.2 will have the bug fixed in the upcoming 1.0.2-beta2 release. ®

The essential guide to IT transformation

More from The Register

next story
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
e-Borders fiasco: Brits stung for £224m after US IT giant sues UK govt
Defeat to Raytheon branded 'catastrophic result'
Chinese hackers spied on investigators of Flight MH370 - report
Classified data on flight's disappearance pinched
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Attack flogged through shiny-clicky social media buttons
66,000 users popped by malicious Flash fudging add-on
Think crypto hides you from spooks on Facebook? THINK AGAIN
Traffic fingerprints reveal all, say boffins
prev story

Whitepapers

A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned 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.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.