From bugzilla at redhat.com Wed Sep 5 17:05:55 2012 From: bugzilla at redhat.com (bugzilla at redhat.com) Date: Wed, 5 Sep 2012 17:05:55 +0000 Subject: [RHSA-2012:1233-01] Important: qemu-kvm-rhev security and bug fix update Message-ID: <201209051705.q85H5ts1005588@int-mx01.intmail.prod.int.phx2.redhat.com> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2012:1233-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1233.html Issue date: 2012-09-05 CVE Names: CVE-2012-3515 ===================================================================== 1. Summary: Updated qemu-kvm-rhev packages that fix one security issue and two bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important 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. 2. Relevant releases/architectures: RHEV Agents (vdsm) - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev packages form the user-space component for running virtual machines using KVM. A flaw was found in the way QEMU handled VT100 terminal escape sequences when emulating certain character devices. A guest user with privileges to write to a character device that is emulated on the host using a virtual console back-end could use this flaw to crash the qemu-kvm process on the host or, possibly, escalate their privileges on the host. (CVE-2012-3515) When using qemu-kvm-rhev on a Red Hat Enterprise Linux 6 host not managed by Red Hat Enterprise Virtualization: * This flaw did not affect the default use of KVM. Affected configurations were: - - When guests were started from the command line ("/usr/libexec/qemu-kvm") without the "-nodefaults" option, and also without specifying a serial or parallel device, or a virtio-console device, that specifically does not use a virtual console (vc) back-end. (Note that Red Hat does not support invoking "qemu-kvm" from the command line without "-nodefaults" on Red Hat Enterprise Linux 6.) - - Guests that were managed via libvirt, such as when using Virtual Machine Manager (virt-manager), but that have a serial or parallel device, or a virtio-console device, that uses a virtual console back-end. By default, guests managed via libvirt will not use a virtual console back-end for such devices. When using qemu-kvm-rhev on a Red Hat Enterprise Virtualization managed Red Hat Enterprise Linux 6 host: * This flaw did not affect the default use of a Red Hat Enterprise Virtualization host: it is not possible to add a device that uses a virtual console back-end via Red Hat Enterprise Virtualization Manager. To specify a virtual console back-end for a device and therefore be vulnerable to this issue, the device would have to be created another way, for example, by using a VDSM hook. Red Hat would like to thank the Xen project for reporting this issue. This update also fixes the following bugs: * Previously, the KVM modules were not loaded by the postinstall scriptlet of RPM scripts. This bug caused various issues and required the system to be rebooted to resolve them. With this update, the modules are loaded properly by the scriptlet and no unnecessary reboots are now required. (BZ#839897) * Previously, when a guest was started up with two serial devices, qemu-kvm returned an error message and terminated the boot because IRQ 4 for the ISA bus was being used by both devices. This update fixes the qemu-kvm code, which allows IRQ 4 to be used by more than one device on the ISA bus, and the boot now succeeds in the described scenario. (BZ#840054) All users of qemu-kvm-rhev are advised to upgrade to these updated packages, which fix these issues. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 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/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 851252 - CVE-2012-3515 qemu: VT100 emulation vulnerability 6. Package List: RHEV Agents (vdsm): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-kvm-rhev-0.12.1.2-2.295.el6_3.2.src.rpm x86_64: qemu-img-rhev-0.12.1.2-2.295.el6_3.2.x86_64.rpm qemu-kvm-rhev-0.12.1.2-2.295.el6_3.2.x86_64.rpm qemu-kvm-rhev-debuginfo-0.12.1.2-2.295.el6_3.2.x86_64.rpm qemu-kvm-rhev-tools-0.12.1.2-2.295.el6_3.2.x86_64.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-2012-3515.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . 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) iD8DBQFQR4YVXlSAg2UNWIIRAq5WAJ9Z18R5/JvEpbbnZm47gi4lcxRSpACdHlZA BcVS3dd+MxlwoYjMQtUCINU= =3sF2 -----END PGP SIGNATURE----- From bugzilla at redhat.com Thu Sep 13 17:22:09 2012 From: bugzilla at redhat.com (bugzilla at redhat.com) Date: Thu, 13 Sep 2012 17:22:09 +0000 Subject: [RHSA-2012:1262-01] Important: rhev-hypervisor5 security and bug fix update Message-ID: <201209131722.q8DHMAQw003555@int-mx11.intmail.prod.int.phx2.redhat.com> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: rhev-hypervisor5 security and bug fix update Advisory ID: RHSA-2012:1262-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1262.html Issue date: 2012-09-13 CVE Names: CVE-2012-3480 CVE-2012-3515 ===================================================================== 1. Summary: An updated rhev-hypervisor5 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-5 - noarch 3. Description: The rhev-hypervisor5 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 flaw was found in the way QEMU handled VT100 terminal escape sequences when emulating certain character devices. A guest user with privileges to write to a character device that is emulated on the host using a virtual console back-end could use this flaw to crash the qemu-kvm process on the host or, possibly, escalate their privileges on the host. (CVE-2012-3515) Multiple integer overflow flaws, leading to stack-based buffer overflows, were found in glibc's functions for converting a string to a numeric representation (strtod(), strtof(), and strtold()). If an application used such a function on attacker controlled input, it could cause the application to crash or, potentially, execute arbitrary code. (CVE-2012-3480) Red Hat would like to thank the Xen project for reporting the CVE-2012-3515 issue. This updated package provides updated components that include various bug fixes, as well as a fix for CVE-2012-3515 in the xen package; however, for this component, it had no security impact on Red Hat Enterprise Virtualization Hypervisor itself. Users of 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/knowledge/articles/11258 To upgrade Hypervisors in Red Hat Enterprise Virtualization 2.2 environments using the disk image provided by this package, refer to: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/h tml/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Ent erprise_Virtualization_Hypervisors.html To upgrade Hypervisors in Red Hat Enterprise Virtualization 3.0 environments using the disk image provided by this package, refer to: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/h tml/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Ent erprise_Virtualization_Hypervisors.html 5. Bugs fixed (http://bugzilla.redhat.com/): 847715 - CVE-2012-3480 glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines 851252 - CVE-2012-3515 qemu: VT100 emulation vulnerability 6. Package List: RHEV Hypervisor for RHEL-5: noarch: rhev-hypervisor5-5.8-20120905.0.el5_8.noarch.rpm rhev-hypervisor5-tools-5.8-20120905.0.el5_8.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-2012-3480.html https://www.redhat.com/security/data/cve/CVE-2012-3515.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html 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 8. Contact: The Red Hat security contact is . 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) iD8DBQFQUhYsXlSAg2UNWIIRAlC+AKCKoUbhqEBz1oiagQgY1YInBrh92QCgsreD TbC5/UyPiepx149++vIntvM= =A8+f -----END PGP SIGNATURE-----