[ GLSA 200407-17 ] l2tpd: Buffer overflow

[GLSA]

Gentoo Linux Security Advisory

Title: l2tpd: Buffer overflow (GLSA 200407-17)
Severity: high
Exploitable: remote
Date: July 22, 2004
Bug(s): #53009
ID: 200407-17

Synopsis

A buffer overflow in l2tpd could lead to remote code execution. It is not known whether this bug is exploitable.

Background

l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.

Affected Packages

Package: net-dialup/l2tpd
Vulnerable: < 0.69-r2
Unaffected: >= 0.69-r2
Architectures: All supported architectures


Description

Thomas Walpuski discovered a buffer overflow that may be exploitable by sending a specially crafted packet. In order to exploit the vulnerable code, an attacker would need to fake the establishment of an L2TP tunnel.

Impact

A remote attacker may be able to execute arbitrary code with the privileges of the user running l2tpd.

Workaround

There is no known workaround for this vulnerability.

Resolution

All users are recommended to upgrade to the latest stable version: