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60% of UK website tests revealed Internet encryption and cross-site scripting vulnerabilities

10th April 2008 60% of web application tests performed for UK organisations showed that their websites contain weak encryption or cross-site scripting (XSS) vulnerabilities Read More

Demilitarised Zone most secure option for BlackBerry device

28th February 2008 Recent BlackBerry testing by IT security consultancy, NTA Monitor, has revealed that organisations are still not configuring these mobile devices correctly Read More

Retailers should put security top of their Christmas list

13th November 2007 With British consumers spending more than £6.6 billion online in the last two months of last year, the 2007 festive season is set to be one of great cheer for online retailers Read More

Businesses warned not to have skeletons in cupboards

13th November 2007 For many organisations, the festive season is an opportunity to heave a corporate sigh of relief and enjoy the brief respite in frenetic business activity as countless people all over the world, go home to celebrate Christmas Read More
Date: 3rd July 2006
Risk: Medium

A newfound flaw in Sendmail can permit attackers to launch Denial of Service attacks. The vulnerability occurs due to an error in the termination of the recursive "mime8to7()" function when performing MIME conversions. The flaw can then be exploited to cause a Sendmail process to crash when it runs out of stack space while processing a deeply nested malformed MIME message.

If the flaw is successfully exploited, it prevents queued messages from being delivered and can also fill up spare disk space with core dump files.

The vulnerability exists in versions 8.13.6 and prior; users are advised to upgrade to version 8.13.7, however, if that's not immediately available, Sendmail suggests three alternatives - install a nesting filter to block problematic messages, limit the size of incoming messages and change the queue run strategy.

References