Red Hat Security Advisory: rhev-hypervisor6 security and bug fix update
🔗 CVE IDs covered (5)
📋 Description
CVE-2012-4929 — SSL/TLS CRIME attack against HTTPS CVE-2012-6075 — qemu: e1000 driver buffer overflow when processing large packets when SBP and LPE flags are disabled CVE-2013-0166 — openssl: DoS due to improper handling of OCSP response verification CVE-2013-0169 — SSL/TLS: CBC padding timing attack (lucky-13) CVE-2013-1619 — gnutls: TLS CBC padding timing attack (lucky-13)
🎯 Affected products2
- RHEV Hypervisor for RHEL-6
- rhev-hypervisor6-0:6.4-20130306.2.el6_4.noarch as a component of RHEV Hypervisor for RHEL-6
✅ Remediation
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/knowledge/articles/11258 To upgrade Hypervisors in Red Hat Enterprise Virtualization environments using the disk image provided by this package, refer to: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html Workaround: On OpenShift Container Platform 3.11 it's possible to edit the list of cipher suites offered by the router when performing 'edge', or 're-encrypt' TLS modes. Please follow the documentation [1], and [2] to remove the vulnerable CBC ciphers use the modern, or intermediate cipher suites outlined by Mozilla instead [3]. In 'passthrough' mode TLS termination occurs in the application so that is another way to mitigate the vulnerability. [1] https://docs.openshift.com/container-platform/3.11/install_config/router/customized_haproxy_router.html#obtaining-router-configuration-template [2] https://docs.openshift.com/container-platform/3.11/install_config/router/customized_haproxy_router.html#using-configmap-replace-template [3] https://wiki.mozilla.org/Security/Server_Side_TLS
🔗 References (10)
- selfhttps://access.redhat.com/errata/RHSA-2013:0636
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=857051
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=889301
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=907589
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=908052
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=908238
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=913267
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0636.json