Bug 188872 - CVE-2006-1730 CSS Letter-Spacing Heap Overflow Vulnerability
CVE-2006-1730 CSS Letter-Spacing Heap Overflow Vulnerability
Product: Fedora
Classification: Fedora
Component: thunderbird (Show other bugs)
All Linux
medium Severity urgent
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Assigned To: Christopher Aillon
: Security
Depends On:
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Reported: 2006-04-13 00:09 EDT by Josh Bressers
Modified: 2007-11-30 17:11 EST (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-08-28 10:45:55 EDT
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Description Josh Bressers 2006-04-13 00:09:27 EDT
CSS Letter-Spacing Heap Overflow Vulnerability

An  anonymous  researcher for TippingPoint and the Zero Day Initiative
discovered an integer overflow triggered by the CSS letter-spacing property.
This results in in under-allocating memory and ultimately a heap buffer
overflow which could be exploited to run code of the attacker's choice.

The overflow condition itself does not require JavaScript and thus could
affect Thunderbird via received mail, but without scripting to prepare
memory it may not be possible to exploit this condition in mail.


Upgrade to the fixed version.



This issue also affects FC4
Comment 1 Josh Bressers 2006-04-24 09:08:25 EDT
Lifting Embargo
Comment 2 Matěj Cepl 2007-07-18 13:30:16 EDT
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 10:45:55 EDT
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.

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