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Category:   Application (Generic)  >   Squid Vendors:
Squid 'STORE_PENDING' Race Condition May Let Remote Users Deny Service
SecurityTracker Alert ID:  1014864
SecurityTracker URL:
CVE Reference:   CAN-2005-2794   (Links to External Site)
Updated:  Sep 15 2005
Original Entry Date:  Sep 7 2005
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.5 and prior versions
Description:   A vulnerability was reported in Squid in the processing of aborted requests. A remote user can cause denial of service conditions.

Under certain conditions, a remote user can send aborted requests to trigger a vulnerability in 'store.c' and cause Squid to crash with a "e->store_status == STORE_PENDING" assertion failure.

Nickolay reported this vulnerability.

Impact:   A remote user can cause Squid to crash.
Solution:   The vendor has issued a fix (squid-2.5.STABLE10-STORE_PENDING.patch), available at:

Red Hat has issued a fix for Red Hat Enterprise Linux 2.1, 3, and 4:

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

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 15 2005 (Red Hat Issues Fix) Squid 'STORE_PENDING' Race Condition May Let Remote Users Deny Service   (
Red Hat has released a fix.

 Source Message Contents

Date:  Wed, 7 Sep 2005 08:38:20 -0400
Subject:  Squid vulnerability

assertion failed: store.c:523: "e->store_status == STORE_PENDING"
synopsis 	Squid crashes with the above assertion failure in certain conditions involving aborted requests.
severity 	Major
date 	2005-09-01 22:44
bugzilla 	#1368
versions 	Squid-2.5 and earlier
platforms 	All
patch 	squid-2.5.STABLE10-STORE_PENDING.patch

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