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Category:   Application (Generic)  >   Squid Vendors:   Squid-cache.org
Squid Buffer Overflow in WCCP recvfrom() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1013045
SecurityTracker URL:  http://securitytracker.com/id/1013045
CVE Reference:   CVE-2005-0211   (Links to External Site)
Updated:  Feb 3 2005
Original Entry Date:  Jan 31 2005
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.5.STABLE7 and prior versions
Description:   A vulnerability was reported in Squid in the WCCP recvfrom() call. A remote user can cause Squid to crash.

The vendor reported that a remote user can send a specially crafted and larger than normal WCCP message to the target server to trigger a buffer overflow in recvfrom() and cause Squid to crash.

The system is only vulnerable if configured to send WCCP messages to and receive WCCP messages from a router.

The vendor credits the FSC Vulnerability Research Team with reporting this flaw.

Impact:   A remote user can cause the target Squid server to crash.
Solution:   The vendor has issued a patch for version Squid-2.5.STABLE7:

http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-wccp_buffer_overflow.patch

Vendor URL:  www.squid-cache.org/Advisories/SQUID-2005_3.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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