Mozilla Browser Non-ASCII Hostname Heap Overflow Vulnerability

BID:11169

Info

Mozilla Browser Non-ASCII Hostname Heap Overflow Vulnerability

Bugtraq ID: 11169
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Sep 14 2004 12:00AM
Updated: Sep 14 2004 12:00AM
Credit: Discovery is credited to Mats Palmgren and Gael Delalleau.
Vulnerable: Netscape Navigator 7.2
Netscape Navigator 7.1
Netscape Navigator 7.0.2
Netscape Navigator 7.0
Mozilla Thunderbird 0.7.3
Mozilla Thunderbird 0.7.2
Mozilla Thunderbird 0.7.1
Mozilla Thunderbird 0.7
Mozilla Thunderbird 0.6
Mozilla Firefox 0.9.3
Mozilla Firefox 0.9.2
Mozilla Firefox 0.9.1
Mozilla Firefox 0.9 rc
Mozilla Firefox 0.9
Mozilla Firefox 0.8
Mozilla Browser 1.7.2
Mozilla Browser 1.7.1
Mozilla Browser 1.7 rc3
Mozilla Browser 1.7
Not Vulnerable: Mozilla Thunderbird 0.8
Mozilla Firefox Preview Release
Mozilla Browser 1.7.3
+ HP HP-UX B.11.23
 + HP HP-UX B.11.22
 + HP HP-UX B.11.22
 + HP HP-UX B.11.11
 + HP HP-UX B.11.11
 + HP HP-UX B.11.11
 + HP HP-UX B.11.11
 + HP HP-UX B.11.00
 + HP HP-UX B.11.00
 + HP Tru64 5.1 B-2 PK4 (BL25)
 + HP Tru64 5.1 B-2 PK4 (BL25)
 + HP Tru64 5.1 B-2 PK4
 + HP Tru64 5.1 B-2 PK4
 + HP Tru64 5.1 B PK4
 + HP Tru64 5.1 B PK4
 + HP Tru64 5.1 A PK6 (BL24)
 + HP Tru64 5.1 A PK6 (BL24)
 + HP Tru64 5.1 A PK6
 + HP Tru64 5.1 A PK6

Discussion

Mozilla Browser Non-ASCII Hostname Heap Overflow Vulnerability

Mozilla is prone to a remotely exploitable heap overflow that is exposed when the browser handles non-ASCII characters in URIs.

This issue could be exploited by enticing a user to open a hyperlink that references a malicious URI. Successful exploitation will allow execution of arbitrary code in the context of the client user.

Exploit / POC

Mozilla Browser Non-ASCII Hostname Heap Overflow Vulnerability

The following proof-of-concepts were provided to demonstrate that the issue may corrupt memory:

Solution / Fix

Mozilla Browser Non-ASCII Hostname Heap Overflow Vulnerability

Solution:
This issue has been addressed in Mozilla 1.7.3, Firefox Preview Release, and Thunderbird 0.8.

Gentoo has released an advisory (GLSA 200409-26) to address various issues in Mozilla Browsers. Please see the referenced advisory for more information. Gentoo users may carry out the following commands to update their systems.

emerge sync
emerge -pv your-version
emerge your-version

For more information please see the referenced Gentoo Linux advisory.

HP has released an advisory (SSRT4826) dealing with this issue for their Tru64 UNIX platform. Please see the referenced advisory for more information.


Mozilla Thunderbird 0.6

Mozilla Thunderbird 0.7

Mozilla Thunderbird 0.7.1

Mozilla Thunderbird 0.7.2

Mozilla Thunderbird 0.7.3

Mozilla Firefox 0.8

Mozilla Firefox 0.9 rc

Mozilla Firefox 0.9

Mozilla Firefox 0.9.1

Mozilla Firefox 0.9.2

Mozilla Firefox 0.9.3

Mozilla Browser 1.7

Mozilla Browser 1.7 rc3

Mozilla Browser 1.7.1

Mozilla Browser 1.7.2

References

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