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Red Hat Enterprise Linux Advisory RHSA-2014:0185-01 openswan DDoS Risk

red hat
Calendar Grey February 18, 2014
Dist Redhat Esm H88
A significant patch for openswan mitigates a vulnerability in Red Hat Enterprise Linux versions 5 and 6, improving overall performance.
Updated openswan packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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

Summary

Openswan is a free 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.
A NULL pointer dereference flaw was discovered in the way Openswan's IKE daemon processed IKEv2 payloads. A remote attacker could send specially crafted IKEv2 payloads that, when processed, would lead to a denial of service (daemon crash), possibly causing existing VPN connections to be dropped. (CVE-2013-6466)
All openswan users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat Enterprise Linux moderate severity openswan

References

https://access.redhat.com/security/cve/CVE-2013-6466 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: openswan-2.6.32-7.3.el5_10.i386.rpm openswan-debuginfo-2.6.32-7.3.el5_10.i386.rpm openswan-doc-2.6.32-7.3.el5_10.i386.rpm
x86_64: openswan-2.6.32-7.3.el5_10.x86_64.rpm openswan-debuginfo-2.6.32-7.3.el5_10.x86_64.rpm openswan-doc-2.6.32-7.3.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: openswan-2.6.32-7.3.el5_10.i386.rpm openswan-debuginfo-2.6.32-7.3.el5_10.i386.rpm openswan-doc-2.6.32-7.3.el5_10.i386.rpm
ia64: openswan-2.6.32-7.3.el5_10.ia64.rpm openswan-debuginfo-2.6.32-7.3.el5_10.ia64.rpm openswan-doc-2.6.32-7.3.el5_10.ia64.rpm
ppc: openswan-2.6.32-7.3.el5_10.ppc.rpm openswan-debuginfo-2.6.32-7.3.el5_10.ppc.rpm openswan-doc-2.6.32-7.3.el5_10.ppc.rpm
s390x: openswan-2.6.32-7.3.el5_10.s390x.rpm openswan-debuginfo-2.6.32-7.3.el5_10.s390x.rpm openswan-doc-2.6.32-7.3.el5_10.s390x.rpm
x86_64: openswan-2.6.32-7.3.el5_10.x86_64.rpm openswan-debuginfo-2.6.32-7.3.el5_10.x86_64.rpm openswan-doc-2.6.32-7.3.el5_10.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: openswan-2.6.32-27.2.el6_5.i686.rpm openswan-debuginfo-2.6.32-27.2.el6_5.i686.rpm
x86_64: openswan-2.6.32-27.2.el6_5.x86_64.rpm openswan-debuginfo-2.6.32-27.2.el6_5.x86_64.rpm


Read the Full Advisory


Advisory ID: RHSA-2014:0185-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0185.html
Issue date: 2014-02-18

Topic

Updated openswan packages that fix one security issue are now available forRed Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as having Moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat Enterprise Linux moderate severity openswan

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1050277 - CVE-2013-6466 openswan: dereferencing missing IKEv2 payloads causes pluto daemon to restart

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