[security-alerts] FW: [SA15779] Sendmail Multi-Part MIME Message Handling Denial of Service

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

> 
> TITLE:
> Sendmail Multi-Part MIME Message Handling Denial of Service
> 
> SECUNIA ADVISORY ID:
> SA15779
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/15779/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> DoS
> 
> WHERE:
> From remote
> 
> OPERATING SYSTEM:
> Sendmail Sentrion 1.x
> http://secunia.com/product/8865/
> 
> SOFTWARE:
> Sendmail 8.x
> http://secunia.com/product/145/
> Sendmail Message Store/SAMS 1.x
> http://secunia.com/product/1198/
> Sendmail Message Store/SAMS 2.x
> http://secunia.com/product/8869/
> Sendmail Switch 2.x
> http://secunia.com/product/1197/
> Sendmail Switch 3.x
> http://secunia.com/product/1196/
> Intelligent Quarantine 3.x
> http://secunia.com/product/8872/
> 
> DESCRIPTION:
> A vulnerability has been reported in Sendmail, which can be exploited
> by malicious people to cause a DoS (Denial of Service).
> 
> The vulnerability is cause due to an error in the termination of the
> recursive "mime8to7()" function when performing MIME conversions.
> This can be exploited to cause a certain sendmail process to crash
> when it runs out of stack space while processing a deeply nested
> malformed MIME message.
> 
> Successful exploitation causes the delivery of other queued messages
> to fail or causes the generated core dump files to fill up available
> disk space.
> 
> The vulnerability has been reported in version 8.13.6 and prior.
> 
> SOLUTION:
> Update to version 8.13.7.
> 
> Users of the commercial products should see the patch matrix in the
> vendor advisory for details.
> 
> PROVIDED AND/OR DISCOVERED BY:
> The vendor credits Frank Sheiness.
> 
> ORIGINAL ADVISORY:
> Sendmail.org:
> http://www.sendmail.org/releases/8.13.7.html
> 
> Sendmail.com:
> http://www.sendmail.com/security/advisories/SA-200605-01.txt.asc
>