l2tpd: Buffer overflow
Gentoo Linux Security Advisory
||GLSA 200407-17 / net-dialup/l2tpd
||July 22, 2004
||July 22, 2004: 01
All supported architectures
A buffer overflow in l2tpd could lead to remote code execution. It is not
known whether this bug is exploitable.
l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.
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.
A remote attacker may be able to execute arbitrary code with the privileges
of the user running l2tpd.
There is no known workaround for this vulnerability.
All users are recommended to upgrade to the latest stable version:
Code Listing 3.1: Resolution
# emerge sync
# emerge -pv ">=net-l2tpd-0.69-r2"
# emerge ">=net-l2tpd-0.69-r2"