24104 : Gentoo Linux Multiple nethack Games High Score Processing Local Overflow
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Info

Last Modified

6 months ago

Percent Complete

100%

Disclosure

Mar 23, 2006

Discovery

Mar 12, 2006

Dates

Exploit

Mar 23, 2006

Solution

Unknown

Description

A local overflow exists in Nethack, Falsconseye, and Slashem. Gentoo's group game policy allows users to manipulate the game's record and state files. Nethack, Falsconseye, and Slashem fail to properly check record data in '/var/games/nethack/record' resulting in a buffer overflow. With a specially crafted request, an attacker can cause arbitrary code execution with the rights of other players resulting in a loss of integrity.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Products

Gentoo Linux	Gentoo Linux	1.4 _rc3
		1.4 _rc2
		1.4 _rc1
		1.4
		1.2
		1.1 a
		0.7
		0.5

References

Bugtraq ID: 17217
Vendor Specific News/Changelog Entry: http://bugs.gentoo.org/show_bug.cgi?id=125902
http://bugs.gentoo.org/show_bug.cgi?id=127167
http://bugs.gentoo.org/show_bug.cgi?id=127319
Related OSVDB ID: 24105
Vendor Specific Advisory URL: http://www.gentoo.org/security/en/glsa/glsa-200603-23.xml
Secunia Advisory ID: 19376
CVE ID: 2006-1390 (see also: NVD)
Keyword: GLSA-200603-23

Manual Testing Notes

Credit

Tavis Ormandy - tavisogoogle.com - Google Information Security Team
Raymond Lewis Rebbeck -

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