Joined: 12 May 2004
|Posted: Sun May 24, 2009 2:26 pm Post subject: [ GLSA 200905-03 ] IPSec Tools: Denial of Service
|Gentoo Linux Security Advisory
Title: IPSec Tools: Denial of Service (GLSA 200905-03)
Date: May 24, 2009
Multiple errors in the IPSec Tools racoon daemon might allow remote attackers to cause a Denial of Service.
The IPSec Tools are a port of KAME's IPsec utilities to the Linux-2.6 IPsec implementation. They include racoon, an Internet Key Exchange daemon for automatically keying IPsec connections.
Vulnerable: < 0.7.2
Unaffected: >= 0.7.2
Architectures: All supported architectures
The following vulnerabilities have been found in the racoon daemon as shipped with IPSec Tools:
- Neil Kettle reported that racoon/isakmp_frag.c is prone to a null-pointer dereference (CVE-2009-1574).
- Multiple memory leaks exist in (1) the eay_check_x509sign() function in racoon/crypto_openssl.c and (2) racoon/nattraversal.c (CVE-2009-1632).
A remote attacker could send specially crafted fragmented ISAKMP packets without a payload or exploit vectors related to X.509 certificate authentication and NAT traversal, possibly resulting in a crash of the racoon daemon.
There is no known workaround at this time.
All IPSec Tools users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/ipsec-tools-0.7.2"