Typespeed: Remote execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200606-20 / typespeed
Release Date	June 19, 2006
Latest Revision	June 19, 2006: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
games-misc/typespeed	< 0.5.0	>= 0.5.0	All supported architectures

Related bugreports: #135071

Synopsis

A buffer overflow in the network code of Typespeed can lead to the execution of arbitrary code.

2. Impact Information

Background

Typespeed is a game to test and practice 10-finger-typing. Network code allows two users to compete head-to-head.

Description

Niko Tyni discovered a buffer overflow in the addnewword() function of Typespeed's network code.

Impact

By sending specially crafted network packets to a machine running Typespeed in multiplayer mode, a remote attacker can execute arbitrary code with the permissions of the user running the game.

3. Resolution Information

Workaround

Do not run Typespeed in multiplayer mode. There is no known workaround at this time for multiplayer mode.

Resolution

All Typespeed users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=games-misc/typespeed-0.5.0"

4. References

CVE-2006-1515

Updated June 19, 2006

Summary: This is a Gentoo Linux Security Advisory

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