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Secunia Advisory SA11983

FreeBSD Linux Compatibility Mode System Call Handling Vulnerability
Secunia Advisory SA11983
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Release Date 2004-07-02
   
Popularity 10,675 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Exposure of system information
Exposure of sensitive information
Privilege escalation
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 4.x
FreeBSD 5.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2004-0602 CVSS available in Customer Area
  

Description

Tim Robbins has discovered a vulnerability in FreeBSD, which can be exploited by malicious, local users to gain knowledge of sensitive information or gain escalated privileges.

The vulnerability is caused due to an input validation error within the handling of certain Linux system calls when running in Linux compatibility mode.

Successful exploitation allows unauthorised read/write access to kernel memory locations.


Solution
Update to a fixed version or apply patch.
Further details available in Customer Area

Provided and/or discovered by
Tim Robbins

Original Advisory
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:13.linux.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 Linux Compatibility Mode System Call Handling Vulnerability
 
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