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Secunia Advisory SA35398

FreeBSD Direct Pipe Writes Information Disclosure Vulnerability
Secunia Advisory SA35398
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Release Date 2009-06-10
Last Update 2009-06-26
   
Popularity 2,601 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Exposure of sensitive information
Where Local system
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Operating System
FreeBSD 6.x
FreeBSD 7.1

Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2009-1935 CVSS available in Customer Area
  

Description

A vulnerability has been reported in FreeBSD, which can be exploited by malicious, local users to disclose potentially sensitive information.

The vulnerability is caused due to an integer overflow within the implementation of "direct pipe writes", which can lead to virtual-to-physical address lookups being skipped. This can be exploited to e.g. disclose memory parts of other processes.


Solution
Update FreeBSD or apply patches.
Further details available in Customer Area

Provided and/or discovered by
Pieter de Boer

Changelog
Further details available in Customer Area

Original Advisory
FreeBSD-SA-09:09.pipe:
http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: FreeBSD Direct Pipe Writes Information Disclosure Vulnerability
 
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