Bug 188787 - CVE-2006-1734 Privilege escalation using a JavaScript function's cloned parent
CVE-2006-1734 Privilege escalation using a JavaScript function's cloned parent
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: mozilla (Show other bugs)
All Linux
medium Severity urgent
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Assigned To: Christopher Aillon
Ben Levenson
: Security
Depends On:
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Reported: 2006-04-12 22:20 EDT by Josh Bressers
Modified: 2007-11-30 17:07 EST (History)
1 user (show)

See Also:
Fixed In Version: RHSA-2006-0329
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-04-25 10:02:37 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Josh Bressers 2006-04-12 22:20:49 EDT
Privilege escalation using a JavaScript function's cloned parent

shutdown discovered it was possible to use the Object.watch() method to
access an internal function object (the "clone parent") which could then be
used to run arbitrary JavaScript code with full permission. This could be
used to install malware such as password sniffers or viruses.

In pre-release versions of Firefox 1.5 the same technique could be applied
to the Array generic methods introduced in that release.

Note: Thunderbird shares the JavaScript engine with Firefox and could be
vulnerable if JavaScript were to be enabled in mail. This is not the default
setting and we strongly discourage users from running JavaScript in mail.


Disable JavaScript until you can upgrade to a fixed version.



This issue also affects RHEL3
This issue also affects RHEL2.1
Comment 1 Josh Bressers 2006-04-17 13:30:05 EDT
Lifting embargo
Comment 4 Red Hat Bugzilla 2006-04-25 10:02:37 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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