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Secunia Advisory SA8703

OpenLinux update for tcp_sec
Secunia Advisory SA8703
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Release Date 2003-04-30
   
Popularity 6,351 views
Comments 0 comments

Criticality level Not criticalNot critical
Impact Security Bypass
Where From remote
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
OpenLinux Server 3.x
OpenLinux Workstation 3.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

SCO has issued updated packages for tcp_sec. The TCP/IP stack implementation accepts packets with both the SYN and FIN bit set, which is not a valid bit combination.

This error improves a malicious person's chances of bypassing a firewall.


Solution
Use the Caldera System Updater, called cupdate/kcupdate to update the packages or download and install them manually.
Further details available in Customer Area

Provided and/or discovered by
Paul Starzetz

Original Advisory
ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-019.0.txt

Other references
Further details available in Customer Area

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: OpenLinux update for tcp_sec
 
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