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[ GLSA 200909-05 ] Openswan: Denial of Service
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GLSA
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PostPosted: Wed Sep 09, 2009 4:26 pm    Post subject: [ GLSA 200909-05 ] Openswan: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: Openswan: Denial of Service (GLSA 200909-05)
Severity: normal
Exploitable: remote
Date: September 09, 2009
Bug(s): #264346, #275233
ID: 200909-05

Synopsis


Multiple vulnerabilities in the pluto IKE daemon of Openswan might allow
remote attackers to cause a Denial of Service.


Background


Openswan is an implementation of IPsec for Linux.


Affected Packages

Package: net-misc/openswan
Vulnerable: < 2.4.15
Unaffected: >= 2.4.15
Architectures: All supported architectures


Description


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).


Impact


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.


Workaround


There is no known workaround at this time.


Resolution


All Openswan users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/openswan-2.4.15"


References

CVE-2009-0790
CVE-2009-2185


Last edited by GLSA on Tue Jul 17, 2012 4:27 am; edited 3 times in total
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