Bug 500972 (CVE-2009-0949)

Summary: CVE-2009-0949 cups: IPP_TAG_UNSUPPORTED handling NULL pointer dereference DoS
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jlieskov, kreilly, security-response-team, twaugh, ykopkova
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2009-06-16 06:56:02 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 498016, 498017, 498023, 501976, 501977    
Bug Blocks:    
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Description Flags
Probable patch none

Description Tomas Hoger 2009-05-15 09:22:24 UTC 
Anibal Sacco from Core Security Technologies discovered a NULL pointer dereference flaw in CUPS daemon when handling the IPP_TAG_UNSUPPORTED, which allows remote attackers with access to CUPS' IPP port to crash cupsd.

Acknowledgements:

Red Hat would like to thank Anibal Sacco from Core Security Technologies
for reporting this issue.
Comment 3 Tomas Hoger 2009-05-15 09:27:56 UTC 
Created attachment 344106 [details]
Probable patch

Extracted from upstream SVN, first appears in 1.3.10.

svn diff -c 8409 http://svn.easysw.com/public/cups/branches/branch-1.3/
Comment 7 Tomas Hoger 2009-06-03 06:26:32 UTC 
Public now via Core Security Technologies advisory:
  http://www.coresecurity.com/content/AppleCUPS-null-pointer-vulnerability
Comment 8 errata-xmlrpc 2009-06-03 15:43:46 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:1082 https://rhn.redhat.com/errata/RHSA-2009-1082.html
Comment 9 errata-xmlrpc 2009-06-03 15:54:26 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 4

Via RHSA-2009:1083 https://rhn.redhat.com/errata/RHSA-2009-1083.html