XBlockOut -display command buffer overflow
| xbl-display-command-bo (12539) |  High Risk |
Description:
XBlockOut (xbl) is vulnerable to a buffer overflow. By default, xbl is installed group ID (GID) of 'games'. By passing an overly long -display command line argument to the game, a local attacker could overflow a buffer and execute arbitrary commands on the system with privileges of the GID 'games'.
Consequences:
Gain Privileges
Remedy:
Upgrade to the latest version of XBlockOut (1.1 or later), available from the XBlockOut Web page. See References.
For Debian GNU/Linux3.0 (woody):
Upgrade to the latest xbl package (xbl_1.0k-3woody2 or later), as listed in DSA-345-1 for more information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- DSA 345-1: New xbl packages fix buffer overflow.
- XBlockOut Web site: XBlockOut (xbl 1.0k).
- BID-8145: XBlockOut XBL Display Local Buffer Overrun Vulnerability
- CVE-2003-0535: Buffer overflow in xbl 1.0k and earlier allows local users to gain privileges via a long -display command line option.
- DSA-345: xbl -- buffer overflow
Platforms Affected:
- Debian Debian Linux 3.0
- Kadon Enterprises XBlockOut prior to 1.0k
Reported:
Jul 08, 2003
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For corrections or additions please email xforce@iss.net