Bug 188825

Summary:	CVE-2006-1734 Privilege escalation using a JavaScript function's cloned parent
Product:	[Fedora] Fedora	Reporter:	Josh Bressers <bressers>
Component:	firefox	Assignee:	Christopher Aillon <caillon>
Status:	CLOSED ERRATA	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	medium
Version:	5	CC:	djuran, security-response-team, wtogami
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	reported=20060412,source=mozilla,embargo=20060414,impact=critical
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-04-27 12:56:21 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Josh Bressers 2006-04-13 03:17:47 UTC

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.

Workaround

Disable JavaScript until you can upgrade to a fixed version.

References

[1]https://bugzilla.mozilla.org/show_bug.cgi?id=313370
[2]https://bugzilla.mozilla.org/show_bug.cgi?id=313684


This issue also affects FC4

Comment 1 Josh Bressers 2006-04-27 12:56:21 UTC

These issues have been resolved in FEDORA-2006-411 for FC5 and FEDORA-2006-410
for FC4