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Insecure Library Loading
Not critical

URBAN Symlink and Multiple Local Buffer Overflow Vulnerabilities

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Release Date:  2005-09-05    Last Update:  2005-09-27    Views:  6,999

Secunia Advisory SA16680

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Partial Fix

CVE Reference(s):

Description


shaun has reported some vulnerabilities in URBAN, which can be exploited by malicious, local users to gain escalated privileges.

1) Some boundary errors in config.cc, game.cc, highscor.cc, and meny.cc when handling an overly long "HOME" environment variable can be exploited to cause stack-based buffer overflows and execute arbitrary code with "games" group privileges.

2) A malicious user can create a symbolic link to his save game file "~/.urban/savegame.dat" in order to create or overwrite arbitrary files on the system with "games" group privileges.

The vulnerabilities have been reported in version 1.5.3. Prior versions may also be affected.

NOTE: The official release of URBAN does reportedly not install URBAN with setgid "games" privileges by default. However, some Linux distributions install URBAN with setgid "games" privileges.


Solution:
The first vulnerability has been fixed in the CVS repositories.

Further details available to Secunia VIM customers

Provided and/or discovered by:
shaun

Original Advisory:
http://www.vuxml.org/freebsd/08df5d46-1baf-11da-8038-0040f42d58c6.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: URBAN Symlink and Multiple Local Buffer Overflow Vulnerabilities

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