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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0174 Important: rhev-hypervisor6 security and bug fix update 16 February 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: rhev-hypervisor6 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Impact/Access: Access Privileged Data -- Remote/Unauthenticated Increased Privileges -- Existing Account Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-0056 CVE-2012-0050 CVE-2012-0029 CVE-2011-4619 CVE-2011-4609 CVE-2011-4577 CVE-2011-4576 CVE-2011-4108 CVE-2009-5029 Reference: ESB-2012.0079 ESB-2012.0074 ESB-2012.0078 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0109.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: rhev-hypervisor6 security and bug fix update Advisory ID: RHSA-2012:0109-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0109.html Issue date: 2012-02-15 CVE Names: CVE-2011-4576 CVE-2011-4577 CVE-2011-4619 CVE-2012-0029 ===================================================================== 1. Summary: An updated rhev-hypervisor6 package that fixes multiple security issues and various bugs is now available. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEV Hypervisor for RHEL-6 - noarch 3. Description: The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. A heap overflow flaw was found in the way QEMU-KVM emulated the e1000 network interface card. A privileged guest user in a virtual machine whose network interface is configured to use the e1000 emulated driver could use this flaw to crash the host or, possibly, escalate their privileges on the host. (CVE-2012-0029) An information leak flaw was found in the SSL 3.0 protocol implementation in OpenSSL. Incorrect initialization of SSL record padding bytes could cause an SSL client or server to send a limited amount of possibly sensitive data to its SSL peer via the encrypted connection. (CVE-2011-4576) A denial of service flaw was found in the RFC 3779 implementation in OpenSSL. A remote attacker could use this flaw to make an application using OpenSSL exit unexpectedly by providing a specially-crafted X.509 certificate that has malformed RFC 3779 extension data. (CVE-2011-4577) It was discovered that OpenSSL did not limit the number of TLS/SSL handshake restarts required to support Server Gated Cryptography. A remote attacker could use this flaw to make a TLS/SSL server using OpenSSL consume an excessive amount of CPU by continuously restarting the handshake. (CVE-2011-4619) Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029. This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers: CVE-2009-5029 and CVE-2011-4609 (glibc issues) CVE-2012-0056 (kernel issue) CVE-2011-4108 and CVE-2012-0050 (openssl issues) This update also fixes the following bugs: * Previously, it was possible to begin a Hypervisor installation without any valid disks to install to. Now, if no valid disks are found for Hypervisor installation, a message is displayed informing the user that there are no valid disks for installation. (BZ#781471) * Previously, the user interface for the Hypervisor did not indicate whether the system was registered with Red Hat Network (RHN) Classic or RHN Satellite. As a result, customers could not easily determine the registration status of their Hypervisor installations. The TUI has been updated to display the registration status of the Hypervisor. (BZ#788223) * Previously, autoinstall would fail if the firstboot or reinstall options were passed but local_boot or upgrade were not passed. Now, neither the local_boot or upgrade parameters are required for autoinstall. (BZ#788225) Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues. 4. 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/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 771775 - CVE-2011-4576 openssl: uninitialized SSL 3.0 padding 771778 - CVE-2011-4577 openssl: malformed RFC 3779 data can cause assertion failures 771780 - CVE-2011-4619 openssl: SGC restart DoS attack 772075 - CVE-2012-0029 qemu-kvm: e1000: process_tx_desc legacy mode packets heap overflow 781472 - Subscription Asset Manager options should be disabled if network is disable. 788225 - autoinstall fails when local_boot or upgrade not passed on command line 788226 - rhev-hypervisor6 6.2 Update 2 Release bugzilla 6. Package List: RHEV Hypervisor for RHEL-6: Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/rhev-hypervisor6-6.2-20120209.0.el6_2.src.rpm noarch: rhev-hypervisor6-6.2-20120209.0.el6_2.noarch.rpm rhev-hypervisor6-tools-6.2-20120209.0.el6_2.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4576.html https://www.redhat.com/security/data/cve/CVE-2011-4577.html https://www.redhat.com/security/data/cve/CVE-2011-4619.html https://www.redhat.com/security/data/cve/CVE-2012-0029.html https://access.redhat.com/security/updates/classification/#important http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/Technical_Notes/ 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPO9wyXlSAg2UNWIIRApHeAJ94KbKRqlkoxDfcAkbU6vCRnoHlOACbBTEd pEnoUpEIojPodmbjoZCtT/w= =eyKB - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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