Bug 126864

Summary: CAN-2004-0493 folding header DoS
Product: [Fedora] Fedora Reporter: Mark J. Cox <mjc>
Component: httpdAssignee: Joe Orton <jorton>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 2CC: barryn, redhat-bugzilla
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: 2.0.50-2.1 Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2004-07-20 09:16:16 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Mark J. Cox 2004-06-28 15:21:32 UTC 
Apache 2.0.49 places no limit on the amount of folding of input
headers, or in the total length after folding.  With an input stream
with infinite headers to be folded, the server will allocate as much
memory as the system will allow, possibly leading to a denial of
service.  

Public by Georgi Guninski to full-disclosure list Jun28

CAN-2004-0493 Affects: FC1
CAN-2004-0493 Affects: FC2
Comment 1 Robert Scheck 2004-06-29 20:54:26 UTC 
The Apache team provides a patch solving this vulnerability:

http://www.apache.org/dist/httpd/patches/apply_to_2.0.49/CAN-2004-0493.patch

This patch applies and works for me with httpd-2.0.49 fine, here.
Comment 2 Joe Orton 2004-07-20 09:16:16 UTC 
Fixed by http://fedoranews.org/updates/FEDORA-2004-204.shtml.