GLSA-200909-05 : Openswan: Denial of Service
Medium Nessus Plugin ID 40913
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200909-05 (Openswan: Denial of Service)
Multiple vulnerabilities have been discovered in Openswan:
Gerd v. Egidy reported a NULL pointer dereference in the Dead Peer Detection of the pluto IKE daemon as included in Openswan (CVE-2009-0790).
The Orange Labs vulnerability research team discovered multiple vulnerabilities in the ASN.1 parser (CVE-2009-2185).
A remote attacker could exploit these vulnerabilities by sending specially crafted R_U_THERE or R_U_THERE_ACK packets, or a specially crafted X.509 certificate containing a malicious Relative Distinguished Name (RDN), UTCTIME string or GENERALIZEDTIME string to cause a Denial of Service of the pluto IKE daemon.
There is no known workaround at this time.
SolutionAll Openswan users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/openswan-2.4.15'