- Issued:
- 2011-11-02
- Updated:
- 2011-11-02
RHSA-2011:1422 - Moderate: openswan security update
Synopsis
Moderate: openswan security update
Type/Severity
Security Advisory Moderate
Topic
Updated openswan packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Description
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 use-after-free flaw was found in the way Openswan's pluto IKE daemon used cryptographic helpers. A remote, authenticated attacker could send a specially-crafted IKE packet that would crash the pluto daemon. This issue only affected SMP (symmetric multiprocessing) systems that have the cryptographic helpers enabled. The helpers are disabled by default on Red Hat Enterprise Linux 5, but enabled by default on Red Hat Enterprise Linux 6. (CVE-2011-4073)
Red Hat would like to thank the Openswan project for reporting this issue. Upstream acknowledges Petar Tsankov, Mohammad Torabi Dashti and David Basin of the information security group at ETH Zurich as the original reporters.
All users of openswan are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the ipsec service will be restarted automatically.
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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Virtual Storage Appliance (from RHUI) | 6.1 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.1 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.1 | i386 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 6.1 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 6.1 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| 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 Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.1 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.1 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- openswan-doc-2.6.21-5.el5_7.6.x86_64.rpm
- openswan-2.6.32-4.el6_1.4.src.rpm
- openswan-2.6.21-5.el5_7.6.x86_64.rpm
- openswan-2.6.32-4.el6_1.4.i686.rpm
- openswan-2.6.21-5.el5_7.6.ppc.rpm
- openswan-2.6.21-5.el5_7.6.ia64.rpm
- openswan-doc-2.6.21-5.el5_7.6.ia64.rpm
- openswan-doc-2.6.32-4.el6_1.4.x86_64.rpm
- openswan-doc-2.6.32-4.el6_1.4.i686.rpm
- openswan-2.6.32-4.el6_1.4.x86_64.rpm
- openswan-doc-2.6.32-4.el6_1.4.ppc64.rpm
- openswan-debuginfo-2.6.32-4.el6_1.4.s390x.rpm
- openswan-doc-2.6.32-4.el6_1.4.s390x.rpm
- openswan-2.6.32-4.el6_1.4.s390x.rpm
- openswan-doc-2.6.21-5.el5_7.6.ppc.rpm
- openswan-2.6.21-5.el5_7.6.i386.rpm
- openswan-doc-2.6.21-5.el5_7.6.s390x.rpm
- openswan-debuginfo-2.6.32-4.el6_1.4.ppc64.rpm
- openswan-2.6.32-4.el6_1.4.ppc64.rpm
- openswan-2.6.21-5.el5_7.6.src.rpm
- openswan-debuginfo-2.6.32-4.el6_1.4.i686.rpm
- openswan-doc-2.6.21-5.el5_7.6.i386.rpm
- openswan-debuginfo-2.6.32-4.el6_1.4.x86_64.rpm
- openswan-2.6.21-5.el5_7.6.s390x.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.