LBreakout2 HOME environment variable buffer overflow

lbreakout2-home-bo (15229) The risk level is classified as HighHigh Risk

Description:

LBreakout2 is vulnerable to a buffer overflow, caused by improper bounds checking of user-supplied input. A local attacker can supply a specially-crafted HOME environment variable to the editor.c, theme.c, manager.c, config.c, game.c, levels.c, or main.c file to overflow a buffer and gain elevated 'games' group privileges.


Consequences:

Gain Privileges

Remedy:

For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest lbreakout2 package (2.2.2-1woody1.dsc or later), as listed in DSA-445-1. See References.

References:

  • BID-9712: LGames LBreakout2 Multiple Environment Variable Buffer Overflow Vulnerabilites
  • CVE-2004-0158: Buffer overflow in lbreakout2 allows local users to gain 'games' group privileges via a large HOME environment variable to (1) editor.c, (2) theme.c, (3) manager.c, (4) config.c, (5) game.c, (6) levels.c, or (7) main.c.
  • DSA-445: lbreakout2 -- buffer overflow
  • OSVDB ID: 16570: LBreakout2 Unspecified Buffer Overflow
  • OSVDB ID: 4025: LBreakout HOME Environment Variable Local Overflow

Platforms Affected:

  • Debian Debian Linux 3.0
  • Lgames LBreakout2 prior to 2.4beta-2

Reported:

Feb 21, 2004

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