Bug 607211 (CVE-2010-2432) - CVE-2010-2432 cups: DoS (infinite loop) via HTTP_UNAUTHORIZED responses STR #3518
Summary: CVE-2010-2432 cups: DoS (infinite loop) via HTTP_UNAUTHORIZED responses STR #...
Status: CLOSED NOTABUG
Alias: CVE-2010-2432
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: public=20100303,reported=20100622,sou...
Keywords: Security
Depends On: 607219
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-06-23 14:16 UTC by Jan Lieskovsky
Modified: 2016-03-04 11:29 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2010-08-23 11:56:41 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Local copy of upstream CVE-2010-2432 / STR #3518 patch (1023 bytes, patch)
2010-06-23 14:28 UTC, Jan Lieskovsky
no flags Details | Diff


External Trackers
Tracker ID Priority Status Summary Last Updated
CUPS Bugs and Features 3518 None None None Never

Description Jan Lieskovsky 2010-06-23 14:16:19 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2010-2432 to
the following vulnerability:

The cupsDoAuthentication function in auth.c in the client in CUPS
before 1.4.4, when HAVE_GSSAPI is omitted, does not properly handle a
demand for authorization, which allows remote CUPS servers to cause a
denial of service (infinite loop) via HTTP_UNAUTHORIZED responses.

References:
  [1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2432
  [2] http://cups.org/articles.php?L596
  [3] http://cups.org/str.php?L3518

Upstream patch:
  svn diff -c r9020 http://svn.easysw.com/public/cups/trunk/

Comment 1 Jan Lieskovsky 2010-06-23 14:21:21 UTC
This issue did NOT affect the version of the cups package, as shipped
with Red Hat Enterprise Linux 3.

This issue affects the versions of the cups package, as shipped with
Red Hat Enterprise Linux 4 and 5.

This issue did NOT affect (is already addressed) in the current versions
of the cups package, as shipped with Fedora releases of 11, 12, and 13.

Comment 4 Jan Lieskovsky 2010-06-23 14:28:38 UTC
Created attachment 426285 [details]
Local copy of upstream CVE-2010-2432 / STR #3518 patch

Comment 5 Vincent Danen 2010-06-23 14:43:24 UTC
Statement:

Not vulnerable. This issue did not affect the versions of CUPS as shipped with Red Hat Enterprise Linux 3, 4, or 5.

Comment 6 Tomas Hoger 2010-08-17 14:36:45 UTC
(In reply to comment #1)
> This issue affects the versions of the cups package, as shipped with
> Red Hat Enterprise Linux 4 and 5.

This does not sound right to me.  CUPS in RHEL-5 is built with GSSAPI support, so for Negotiate authentications, "too many tries" error is hit.  For Basic and Digest authentication, password callback function is called again to ask for a different password.  There does not seem to be a limit on number of password callback calls, but that behaviour matches upstream behaviour in 1.4.4 (fixed version).

RHEL-4 CUPS does not support Negotiate and password callback is called in case of Basic or Digest failures.

Comment 7 Tomas Hoger 2010-08-23 11:56:41 UTC
Upstream confirms that not limiting number of password callback calls is intended behaviour.  Closing this notabug, with updated statement in comment #5.


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