NetHack -s command buffer overflow
| nethack-s-command-bo (11283) |  High Risk |
Description:
NetHack is vulnerable to a buffer overflow. The NetHack package is installed setuid games. By passing an overly long argument to NetHack using the -s command line option, a local attacker could overflow a buffer and execute arbitrary code on the system with "setuid games" privileges.
Consequences:
Gain Privileges
Remedy:
For FreeBSD Ports Collection:
Apply the topten.c.patch, available from the FreeBSD.org Web site. See References.
For Gentoo Linux:
Upgrade to the latest version of neckhack (3.4.0-r6 or later), as listed in Gentoo Linux Security Announcement 200302-08. See References.
For Debian GNU/Linux:
Upgrade to the latest nethack package, as listed below. Refer to DSA-316-1 for more information. See References.
Debian GNU/Linux 2.2 (potato): 3.3.0-7potato1 or later
Debian DNU/Linux 3.0 (woody): 3.4.0-3.0woody3 or later
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- BugTraq Mailing List, Sun Feb 09 2003 - 01:18:49 CST : #!ICadv-02.09.03: nethack 3.4.0 local buffer overflow .
- FreeBSD.org Web site: Index of /~roam/devel/nethack.
- Gentoo Linux Security Announcement 200302-08: nethack -- buffer overflow.
- NetHack Home Page: NetHack:3.4.0 Home Page.
- BID-6806: Nethack Local Buffer Overflow Vulnerability
- BID-681: Mirror File Creation Vulnerability
- CVE-2003-0358: Buffer overflow in (1) nethack 3.4.0 and earlier, and (2) falconseye 1.9.3 and earlier, which is based on nethack, allows local users to gain privileges via a long -s command line option.
- DSA-316: nethack -- buffer overflow
- DSA-350: falconseye -- buffer overflow
Platforms Affected:
- Debian Debian Linux 2.2
- Debian Debian Linux 3.0
- FreeBSD FreeBSD Ports Collection
- Gentoo Linux
- Nethack Development Team NetHack 3.4.0 and prior
- RedHat Linux 8.0
Reported:
Feb 09, 2003
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