Openswan: Denial of Service

Openswan: Denial of Service Multiple vulnerabilities in the pluto IKE daemon of Openswan might allow remote attackers to cause a Denial of Service. openswan September 09, 2009 September 09, 2009: 01 264346 275233 remote 2.4.15 2.4.15

Openswan is an implementation of IPsec for Linux.

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.

All Openswan users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/openswan-2.4.15"

CVE-2009-0790 CVE-2009-2185 craig a3li a3li