TITLE:
Petris Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA18362

VERIFY ADVISORY:
http://secunia.com/advisories/18362/

CRITICAL:
Not critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Petris 1.x
http://secunia.com/product/6763/

DESCRIPTION:
Steve Kemp has reported a vulnerability in Petris, which potentially
can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to a boundary error in the handling
of environment variables when processing highscores. This can be
exploited to cause a buffer overflow.

Successful exploitation may allow execution of arbitrary code with
escalated privileges on systems, where the game has been installed
setuid or setgid (typically setgid "games").

SOLUTION:
Remove any setuid / setgid bits.

Games should not be installed on production systems.

PROVIDED AND/OR DISCOVERED BY:
Steve Kemp, Debian Security Audit project

ORIGINAL ADVISORY:
http://www.debian.org/security/2006/dsa-929

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