Bug 907425 (CVE-2013-0254) - CVE-2013-0254 qt: QSharedMemory class created shared memory segments with insecure permissions
Summary: CVE-2013-0254 qt: QSharedMemory class created shared memory segments with ins...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-0254
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 907928 921720 921721
Blocks: 907429
TreeView+ depends on / blocked
 
Reported: 2013-02-04 11:10 UTC by Jan Lieskovsky
Modified: 2023-05-13 00:55 UTC (History)
2 users (show)

Fixed In Version: Qt 5.0.1, Qt 4.8.5, Qt 4.7.6
Clone Of:
Environment:
Last Closed: 2021-10-19 22:00:15 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0669 0 normal SHIPPED_LIVE Moderate: qt security update 2013-03-21 22:22:27 UTC

Description Jan Lieskovsky 2013-02-04 11:10:39 UTC 
A security flaw was found in the way QSharedMemory class implementation of the Qt toolkit created shared memory segments (they were created with world-readable and world-writeable permissions). A local attacker could use this flaw to read or alter content of particular shared memory segment, possibly leading to their ability to obtain sensitive information or influence behaviour of shared memory segment reader process.
Comment 2 Jan Lieskovsky 2013-02-04 11:15:11 UTC 
Relevant upstream patches:
[1] (for 5.0 branch):
  http://qt.gitorious.org/qt/qtbase/commit/856f209fb63ae336bfb389a12d2a75fa886dc1c5 

[2] (for 4.8 branch): 
  http://qt.gitorious.org/qt/qt/commit/20b26bdb3dd5e46b01b9a7e1ce8342074df3c89c

[3] (for 4.7 branch):
  http://qt.gitorious.org/qt/qt/commit/57756e72adf2081137b97f0e689dd16c770d10b1
Comment 3 Jan Lieskovsky 2013-02-04 11:16:58 UTC 
This issue did NOT affect the version of the qt package, as shipped with Red Hat Enterprise Linux 5 and version of the qt3 package, as shipped with Red Hat Enterprise Linux 6.

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This issue affects the version of the qt package, as shipped with Red Hat Enterprise Linux 6.

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This issue affects the versions of the qt package, as shipped with Fedora release of 16, 17, and 18.

--

This issue did not affect the version of the qt3 package, as shipped with Fedora release of 16, 17, and 18.
Comment 4 Jan Lieskovsky 2013-02-04 13:26:13 UTC 
The CVE identifier of CVE-2013-0254 has been assigned to this issue.
Comment 7 Jan Lieskovsky 2013-02-05 14:50:38 UTC 
Public now via:

http://article.gmane.org/gmane.comp.lib.qt.devel/9759
Comment 8 Jan Lieskovsky 2013-02-05 14:54:36 UTC 
Created qt tracking bugs for this issue

Affects: fedora-all [bug 907928]
Comment 10 Fedora Update System 2013-02-13 04:35:35 UTC 
qt-4.8.4-11.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2013-02-24 08:52:31 UTC 
qt-4.8.4-11.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 14 Murray McAllister 2013-03-21 10:59:06 UTC 
Acknowledgements:

Red Hat would like to thank the Qt project for reporting this issue. Upstream acknowledges Tim Brown and Mark Lowe of Portcullis Computer Security Ltd. as the original reporters.
Comment 15 errata-xmlrpc 2013-03-21 18:26:52 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0669 https://rhn.redhat.com/errata/RHSA-2013-0669.html
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