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Bug 250161 (CVE-2007-4045)

Summary: CVE-2007-4045 Incomplete fix for CVE-2007-0720 CUPS denial of service
Product: [Other] Security Response Reporter: Lubomir Kundrak <lkundrak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: twaugh
Target Milestone: ---Keywords: Regression, Security
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://www.novell.com/linux/security/advisories/2007_14_sr.html
Whiteboard: impact=low,source=cve,public=20070720,reported=20070730
Fixed In Version: 1.3.4-2.fc8 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-11-08 01:03:41 EST Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Bug Depends On: 356541, 356551, 356561    
Bug Blocks:    
Attachments:
Description Flags
Patch for CVE-2007-4045 CUPS DoS sucked from SUSE package none

Description Lubomir Kundrak 2007-07-30 15:34:22 EDT
Description of problem:

SUSE-SR:2007:014 (see URL field) reads:

   - cups denial of service regression fix

     CUPS packages were released to fix another denial of service problem
     introduced by the previous Denial of Service Fix for CVE-2007-0720, which was
     incomplete.

Version-Release number of selected component (if applicable):

        CVE-2007-4045 Affects: RHEL4
        CVE-2007-4045 Affects: RHEL5
        CVE-2007-4045 Affects: FC6
        CVE-2007-4045 Affects: FC7
Comment 1 Lubomir Kundrak 2007-07-30 15:34:22 EDT
Created attachment 160266 [details]
Patch for CVE-2007-4045 CUPS DoS sucked from SUSE package
Comment 5 Fedora Update System 2007-11-08 01:03:35 EST
cups-1.3.4-2.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2007-11-09 18:51:52 EST
cups-1.2.12-7.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Tomas Hoger 2008-03-23 06:05:56 EDT
This issue only affected CUPS versions prior to 1.2.x and was addressed in CUPS
packages in Red Hat Enterprise Linux 3 and 4.

Patches applied to Fedora packages were not needed and were dropped few weeks later:

* Fri Nov 30 2007 Tim Waugh <twaugh-at-redhat.com>
- CVE-2007-4045 patch is not necessarily because cupsd_client_t objects are
  not moved in array operations, only pointers to them.

Also noted by upstream in http://www.cups.org/str.php?L2725:

 This patch is not valid or needed for any version of CUPS since 1.2.

 The problem in 1.1.x was that the Clients array was allocated as a
 contiguous array, so when a client went away the user data pointer for
 OpenSSL needed to be updated to point to the correct http_t structure.

 In 1.2 we changed the Clients array to use individually-allocated
 cupsd_client_t structures managed by the CUPS array API. This means
 that the address of the http_t structure won't change when a client
 is removed or added.
Comment 8 Red Hat Product Security 2008-03-23 06:08:54 EDT
This issue was addressed in:

Red Hat Enterprise Linux:
  http://rhn.redhat.com/errata/RHSA-2007-1022.html
  http://rhn.redhat.com/errata/RHSA-2007-1023.html