Bug 863622 (CVE-2012-3994) - CVE-2012-3994 Mozilla: top object and location property accessible by plugins (MFSA 2012-82)
Summary: CVE-2012-3994 Mozilla: top object and location property accessible by plugins...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-3994
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:
Blocks: Embargoed852611
TreeView+ depends on / blocked
 
Reported: 2012-10-06 05:14 UTC by Huzaifa S. Sidhpurwala
Modified: 2023-05-11 19:41 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-10-10 09:07:28 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2012:1350 0 normal SHIPPED_LIVE Critical: firefox security and bug fix update 2012-10-10 02:51:39 UTC
Red Hat Product Errata RHSA-2012:1351 0 normal SHIPPED_LIVE Critical: thunderbird security update 2012-10-10 02:31:05 UTC

Description Huzaifa S. Sidhpurwala 2012-10-06 05:14:02 UTC 
Security researcher Mariusz Mlynski reported that the location property can be accessed by binary plugins through top.location and top can be shadowed by Object.defineProperty as well. This can allow for possible cross-site scripting (XSS) attacks through plugins.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.


External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-82.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mariusz Mlynski as the original reporter
Comment 1 errata-xmlrpc 2012-10-09 22:33:24 UTC 
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 2 errata-xmlrpc 2012-10-09 22:54:00 UTC 
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
Note You need to log in before you can comment on or make changes to this bug.