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Cube: Multiple vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200603-10 / cube
Release Date March 13, 2006
Latest Revision March 13, 2006: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
games-fps/cube <= 20050829 All supported architectures

Related bugreports: #125289

Synopsis

Cube is vulnerable to a buffer overflow, invalid memory access and remote client crashes, possibly leading to a Denial of Service or remote code execution.

2.  Impact Information

Background

Cube is an open source first person shooter game engine supporting multiplayer via LAN or internet.

Description

Luigi Auriemma reported that Cube is vulnerable to a buffer overflow in the sgetstr() function (CVE-2006-1100) and that the sgetstr() and getint() functions fail to verify the length of the supplied argument, possibly leading to the access of invalid memory regions (CVE-2006-1101). Furthermore, he discovered that a client crashes when asked to load specially crafted mapnames (CVE-2006-1102).

Impact

A remote attacker could exploit the buffer overflow to execute arbitrary code with the rights of the user running cube. An attacker could also exploit the other vulnerabilities to crash a Cube client or server, resulting in a Denial of Service.

3.  Resolution Information

Workaround

Play solo games or restrict your multiplayer games to trusted parties.

Resolution

Upstream stated that there will be no fixed version of Cube, thus the Gentoo Security Team decided to hardmask Cube for security reasons. All Cube users are encouraged to uninstall Cube:

Code Listing 3.1: Resolution

# emerge --ask --unmerge games-fps/cube

4.  References



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Page updated March 13, 2006

Summary: This is a Gentoo Linux Security Advisory

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