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Category:   Application (Web Server/CGI)  >   Squid Vendors:
Squid HTCP Packet Processing NULL Pointer Dereference Lets Remote Users Deny Service
SecurityTracker Alert ID:  1023587
SecurityTracker URL:
CVE Reference:   CVE-2010-0639   (Links to External Site)
Updated:  Feb 18 2010
Original Entry Date:  Feb 12 2010
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.x, 3.0 prior to 3.0.STABLE24
Description:   A vulnerability was reported in Squid. A remote user can cause denial of service conditions.

A remote user can send specially crafted HTCP packets to trigger a null pointer dereference and cause the target service to crash.

Systems with the HTCP port open are affected.

The vulnerability resides in ''.

Kieran Whitbread reported this vulnerability.

Impact:   A remote user can cause the target proxy to crash.
Solution:   The vendor has issued a fix (3.0.STABLE24).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.

 Source Message Contents

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