Bug 168106 - CAN-2005-2874 Malformed HTTP Request URL denial of service
Summary: CAN-2005-2874 Malformed HTTP Request URL denial of service
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: cups
Version: 3
Hardware: i386
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Tim Waugh
QA Contact:
URL: http://securitytracker.com/id?1012811
Whiteboard: impact=moderate,reported=20050912,pub...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-09-12 14:47 UTC by Josh Bressers
Modified: 2007-11-30 22:11 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2005-10-25 11:48:15 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Josh Bressers 2005-09-12 14:47:51 UTC
+++ This bug was initially created as a clone of Bug #168072 +++

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050909
Red Hat/1.0.6-1.4.2 Firefox/1.0.6

Description of problem:
Connecting to the CUPS daemon on port 631, and sending a http request "GET
/..\.." will cause the daemon to enter a tight loop, and eat up all available CPU.

Version-Release number of selected component (if applicable):
cups-1.1.22-0.rc1.9.7

How reproducible:
Always

Steps to Reproduce:
1. telnet example.com 631
2. type "GET /..\.." followed by enter twice
3. denial of service
  

Actual Results:  denial of service, cups daemon eating up 100% CPU

Expected Results:  graceful handling of malformed http request

Additional info:

Security Tracker advisory: http://securitytracker.com/id?1012811
Exploit: http://www.securiteam.com/exploits/5WP021PGUW.html
CUPS Release Notes from fixed version: http://www.cups.org/relnotes.php#010123
CUPS bug: http://www.cups.org/str.php?L1042+P0+S-1+C0+I0+E0+Q1042

Comment 1 Fedora Update System 2005-09-22 16:25:02 UTC
From User-Agent: XML-RPC

cups-1.1.22-0.rc1.8.7 has been pushed for FC3, which should resolve this issue.  If these problems are still present in this version, then please make note of it in this bug report.

Comment 2 Mark J. Cox 2005-10-25 11:48:15 UTC
        CAN-2005-2874 Affects: FC3 [#168106:ASSIGNED] -> FEDORA-2005-908



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