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Ubuntu 14.10, 14.04 LTS: USN-2450-1 Critical StrongSwan DoS Issue

ubuntu
Calendar Grey January 5, 2015
Dist Ubuntu Esm H88
Patch to resolve strongSwan exploit in Ubuntu. Mitigate denial of service risks from maliciously crafted packets.
strongSwan could be made to crash or run programs if it received specially crafted network traffic.

Summary

strongSwan could be made to crash or run programs if it received specially

crafted network traffic.

Software Description:

- strongswan: IPsec VPN solution

Details:

Mike Daskalakis discovered that strongSwan incorrectly handled IKEv2

payloads that contained the Diffie-Hellman group 1025. A remote attacker

could use this issue to cause the IKE daemon to crash, resulting in a

denial of service.

Topics%20covered

Topics Covered

security advisory denial of service network traffic ubuntu strongSwan

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
  strongswan-ike                  5.1.2-0ubuntu3.2

Ubuntu 14.04 LTS:
  strongswan-ike                  5.1.2-0ubuntu2.2

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-2450-1

CVE-2014-9221

Severity
critical
Lowest
Low
Medium
High
Critical

January 05, 2015

Topics%20covered

Topics Covered

security advisory denial of service network traffic ubuntu strongSwan

Package Information

https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu3.2
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu2.2

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