----------------------------------------------------------------------

Bist Du interessiert an einem neuen Job in IT-Sicherheit?


Secunia hat zwei freie Stellen als Junior und Senior Spezialist in IT-
Sicherheit:
http://secunia.com/secunia_vacancies/

----------------------------------------------------------------------

TITLE:
Firefox URL Domain Name Buffer Overflow

SECUNIA ADVISORY ID:
SA16764

VERIFY ADVISORY:
http://secunia.com/advisories/16764/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Mozilla Firefox 1.x
http://secunia.com/product/4227/

DESCRIPTION:
Tom Ferris has discovered a vulnerability in Firefox, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially to compromise a user's system.

The vulnerability is caused due to an error in the handling of an URL
that contains the 0xAD character in its domain name. This can be
exploited to cause a heap-based buffer overflow.

Successful exploitation crashes Firefox and may potentially allow
code execution but requires that the user is tricked into visiting a
malicious web site or open a specially crafted HTML file.

The vulnerability has been confirmed in version 1.0.6, and is
reported to affect versions prior to 1.0.6, and version 1.5 Beta 1.

SOLUTION:
Don't browse untrusted web sites.

PROVIDED AND/OR DISCOVERED BY:
Tom Ferris

ORIGINAL ADVISORY:
http://security-protocols.com/advisory/sp-x17-advisory.txt

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------