GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Sun May 24, 2009 2:26 pm Post subject: [ GLSA 200905-03 ] IPSec Tools: Denial of Service |
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Gentoo Linux Security Advisory
Title: IPSec Tools: Denial of Service (GLSA 200905-03)
Severity: normal
Exploitable: remote
Date: May 24, 2009
Bug(s): #267135
ID: 200905-03
Synopsis
Multiple errors in the IPSec Tools racoon daemon might allow remote attackers to cause a Denial of Service.
Background
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.
Affected Packages
Package: net-firewall/ipsec-tools
Vulnerable: < 0.7.2
Unaffected: >= 0.7.2
Architectures: All supported architectures
Description
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).
Impact
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.
Workaround
There is no known workaround at this time.
Resolution
All IPSec Tools users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/ipsec-tools-0.7.2" |
References
CVE-2009-1574
CVE-2009-1632 |
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