Bug 188802 – CVE-2006-1730 CSS Letter-Spacing Heap Overflow Vulnerability

Bug 188802 - CVE-2006-1730 CSS Letter-Spacing Heap Overflow Vulnerability

Summary:	CVE-2006-1730 CSS Letter-Spacing Heap Overflow Vulnerability

Status:	CLOSED ERRATA

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	mozilla (Show other bugs)
Sub Component:
Version:	5
Hardware:	All Linux

Priority	medium Severity urgent
Target Milestone:	---
Target Release:	---
Assigned To:	Christopher Aillon
QA Contact:	Ben Levenson
Docs Contact:

URL:
Whiteboard:	reported=20060412,source=mozilla,emba...
Keywords:	Security

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2006-04-12 22:28 EDT by Josh Bressers
Modified:	2007-11-30 17:11 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	FEDORA-2006-487
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2006-06-24 12:25:38 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Josh Bressers 2006-04-12 22:28:12 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.

Workaround

Upgrade to the fixed version.

References

[1]ZDI-06-009
[2]https://bugzilla.mozilla.org/show_bug.cgi?id=325403


This issue also affects FC4

Comment 1 Josh Bressers 2006-04-24 08:49:18 EDT

Lifting embargo

Comment 2 David Eisenstein 2006-06-24 12:25:38 EDT

This bug was fixed for FC4 in Fedora Update FEDORA-2006-488
<http://www.redhat.com/archives/fedora-package-announce/2006-May/msg00019.html>.

This bug was fixed for FC5 in Fedora Update FEDORA-2006-487
<http://www.redhat.com/archives/fedora-package-announce/2006-May/msg00018.html>.

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