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Info |
Last Modified |
| about 1 year ago |
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Description |
A local overflow exists in tetris-bsd of the port bsd-games on Gentoo Linux. The checkscores() function in scores.c fails to validate a player's name, obtained from the '/var/games/tetris-bsd.scores' file, before it is printed into a buffer using sprintf, resulting in a stack overflow. The same function also reads player level without validation, resulting in an integer overflow. With a specially crafted request, an attacker can execute arbitrary code as a user with the permissions of the games group, resulting in a loss of integrity.
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Classification |
Location:
Local Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Unavailable
Disclosure:
OSVDB Verified
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Solution |
Upgrade to version 2.17-r1 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround: do not add untrusted users to the "games" group.
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Products |
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Gentoo Linux
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Unknown or Unspecified |
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tetris-bsd
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2.17 |
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Credit |
Unknown or Incomplete
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BlogsProvided by Technorati
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None found at this time
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