Bug 126864 - CAN-2004-0493 folding header DoS
Summary: CAN-2004-0493 folding header DoS
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: httpd
Version: 2
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Joe Orton
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2004-06-28 15:21 UTC by Mark J. Cox
Modified: 2007-11-30 22:10 UTC (History)
2 users (show)

Fixed In Version: 2.0.50-2.1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2004-07-20 09:16:16 UTC
Type: ---
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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.
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