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GDM Local Denial of Service Vulnerabilities
Secunia Advisory: SA10024
Release Date: 2003-10-20
Popularity: 7,075 views

Critical:
Not critical
Impact: DoS
Where: Local system
Solution Status: Vendor Patch

Software:GNOME Display Manager (GDM) 2.x

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CVE reference:CVE-2003-0793
CVE-2003-0794


Description:
Two vulnerabilities have been identified in GDM allowing malicious, local users to cause a Denial of Service.

1) GDM fails to restrict the number of requests, which can be exploited to crash GDM by sending a large number of requests.

2) Long input is handled inappropriately, which can be exploited to make GDM consume large amounts of memory. This can cause it to crash or stop responding.

Versions 2.4.4.3 and prior are affected.

Solution:
Update to version 2.4.4.4 or later:
http://ftp.gnome.org/pub/GNOME/sources/gdm/2.4/

Provided and/or discovered by:
Jarno Gassenbauer


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