RHBA-2014:1223 - Bug Fix Advisory

Topic

Updated openswan packages that fix one bug are now available for Red Hat
Enterprise Linux 5.

Description

Openswan is an implementation of Internet Protocol Security (IPsec) and Internet
Key Exchange (IKE). IPsec uses strong cryptography to provide both
authentication and encryption services. These services allow you to build secure
tunnels through untrusted networks.

This update fixes the following bug:

• Previously, Openswan supported a NAT-T negotiation method which used a

notification number that was assigned by the Internet Assigned Numbers Authority
(IANA) for another option. This incorrect option was therefore removed. As a
consequence, clients supporting non-RFC versions of NAT-T could not establish an
Openswan connection. With this update, Openswan has been modified to fully
ignore that option, and clients can send both the incorrect option and the draft
or the RFC option to connect to Openswan successfully. (BZ#1070358)

Users of openswan are advised to upgrade to these updated packages, which fix
this bug.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 1070358 - openswan breaks NAT-T draft clients (and possibly ike fragmentation)

CVEs

(none)

References

(none)