Bug 851912 - (CVE-2012-1956) CVE-2012-1956 Mozilla: Location object can be shadowed using Object.defineProperty (MFSA 2012-59)
CVE-2012-1956 Mozilla: Location object can be shadowed using Object.definePro...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20120828,repor...
: Security
Depends On:
Blocks: 852611
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Reported: 2012-08-26 23:33 EDT by Huzaifa S. Sidhpurwala
Modified: 2012-10-10 05:06 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-10-10 05:06:42 EDT
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Description Huzaifa S. Sidhpurwala 2012-08-26 23:33:27 EDT
Security researcher Mariusz Mlynski reported that it is possible to shadow the location object using Object.defineProperty. This could be used to confuse the current location to plugins, allowing for possible cross-site scripting (XSS) attacks. 

External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-59.html

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Security researcher Mariusz Mlynski as the original reporter.
Comment 2 errata-xmlrpc 2012-10-09 18:33:04 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1351 https://rhn.redhat.com/errata/RHSA-2012-1351.html
Comment 3 errata-xmlrpc 2012-10-09 18:53:41 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1350 https://rhn.redhat.com/errata/RHSA-2012-1350.html

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