Bug 188851

Summary:	CVE-2006-1742 JavaScript garbage-collection hazard audit
Product:	[Fedora] Fedora	Reporter:	Josh Bressers <bressers>
Component:	thunderbird	Assignee:	Christopher Aillon <caillon>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5	CC:	mcepl, mcepl, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	reported=20060412,source=mozilla,embargo=yes,impact=moderate
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-08-28 15:00:50 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 03:59:13 UTC

JavaScript garbage-collection hazard audit


Igor  Bukanov  has audited the JavaScript engine for routines that use
temporary variables not protected against garbage-collection. If malicious
content could cause garbage-collection to run during the lifetime of these
temporaries  then the original routine would end up operating on freed
memory.

The  risk  appears  remote,  but  this type of memory corruption could
potentially be used by an attacker to run arbitrary code including the
installation of malware.

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

Upgrade to the fixed versions. Do not enable JavaScript in Thunderbird or
Mozilla Suite mail.

References

[1]https://bugzilla.mozilla.org/show_bug.cgi?id=311497
[2]https://bugzilla.mozilla.org/show_bug.cgi?id=311792
[3]https://bugzilla.mozilla.org/show_bug.cgi?id=312278
[4]https://bugzilla.mozilla.org/show_bug.cgi?id=313276
[5]https://bugzilla.mozilla.org/show_bug.cgi?id=313479
[6]https://bugzilla.mozilla.org/show_bug.cgi?id=313630
[7]https://bugzilla.mozilla.org/show_bug.cgi?id=313726
[8]https://bugzilla.mozilla.org/show_bug.cgi?id=313763
[9]https://bugzilla.mozilla.org/show_bug.cgi?id=313938
[10]https://bugzilla.mozilla.org/show_bug.cgi?id=325269


This issue also affects FC4

Comment 1 Josh Bressers 2006-04-24 13:09:58 UTC

Lifting embargo

Comment 2 Matěj Cepl 2007-07-18 17:32:39 UTC

Fedora Core 5 is no longer supported, could you please reproduce this with the
updated version of the currently supported distribution (Fedora Core 6, or
Fedora 7, or Rawhide)? If this issue turns out to still be reproducible, please
let us know in this bug report.  If after a month's time we have not heard back
from you, we will have to close this bug as CANTFIX.

Setting status to NEEDINFO, and awaiting information from the reporter.

Thanks in advance.

Comment 3 Matěj Cepl 2007-08-28 15:00:50 UTC

We haven't got any reply to the last question about reproducability of the bug
with Fedora Core 6, Fedora 7, or Fedora devel. Mass closing this bug, so if you
have new information that would help us fix this bug, please reopen it with the
additional information.