18 April 2012
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0382 Important: rhev-hypervisor5 security and bug fix update 18 April 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: rhev-hypervisor5 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-1583 CVE-2012-1573 CVE-2012-1569 CVE-2012-1165 CVE-2012-0884 CVE-2012-0864 CVE-2011-4128 CVE-2011-3045 Reference: ESB-2012.0380 ESB-2012.0320 ESB-2012.0319 ESB-2012.0318 ESB-2012.0300 ESB-2012.0285 ESB-2012.0269 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0488.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: rhev-hypervisor5 security and bug fix update Advisory ID: RHSA-2012:0488-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0488.html Issue date: 2012-04-17 CVE Names: CVE-2012-0864 CVE-2012-1569 CVE-2012-1573 ===================================================================== 1. Summary: An updated rhev-hypervisor5 package that fixes three security issues and one bug 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 libtasn1 decoded DER data. An attacker could create a carefully-crafted X.509 certificate that, when parsed by an application that uses GnuTLS, could cause the application to crash. (CVE-2012-1569) A flaw was found in the way GnuTLS decrypted malformed TLS records. This could cause a TLS/SSL client or server to crash when processing a specially-crafted TLS record from a remote TLS/SSL connection peer. (CVE-2012-1573) An integer overflow flaw was found in the implementation of the printf functions family. This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-0864) Red Hat would like to thank Matthew Hall of Mu Dynamics for reporting CVE-2012-1569 and CVE-2012-1573. 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-2011-4128 (gnutls issue) CVE-2012-1583 (kernel issue) CVE-2011-3045 (libpng issue) CVE-2012-0884 and CVE-2012-1165 (openssl issues) Further information on the changes made to the package is available on the relevant errata: https://rhn.redhat.com/errata/RHBA-2012-0398.html 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 5. Bugs fixed (http://bugzilla.redhat.com/): 794766 - CVE-2012-0864 glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow 804920 - CVE-2012-1569 libtasn1: DER decoding buffer overflow (GNUTLS-SA-2012-3, MU-201202-02) 805432 - CVE-2012-1573 gnutls: TLS record handling issue (GNUTLS-SA-2012-2, MU-201202-01) 6. Package List: RHEV Hypervisor for RHEL-5: noarch: rhev-hypervisor5-5.8-20120403.0.el5_8.noarch.rpm rhev-hypervisor5-tools-5.8-20120403.0.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-2012-0864.html https://www.redhat.com/security/data/cve/CVE-2012-1569.html https://www.redhat.com/security/data/cve/CVE-2012-1573.html https://access.redhat.com/security/updates/classification/#important https://rhn.redhat.com/errata/RHBA-2012-0398.html 8. Contact: The Red Hat security contact is <firstname.lastname@example.org>. 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) iD8DBQFPjb2/XlSAg2UNWIIRAi1QAJwPnafecqU2DiI0iLaNlVUUWkAkeACgtew3 DXaDPNmdW1WwcDpsob4oOoQ= =b89f - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBT44R8e4yVqjM2NGpAQL+JhAAhwIZhIpxNascjmx/1MGs5LyKSBPFgTq+ XLAUlPaNWV6/NcPsw9RpJAjqzd8lWgpsIBWnI7ALe6MQLqTiXy4bp/p0vZY4HZBF TmnlFek0ZnmR2ePS0HsEoAGmQJzSmYmQf2SPvwZtoMyI99rLydwfk9d8PMBOcFmm 78+7SZvB11Rc88+dUXwi3cCGyFbR4KLIT8oWb8TA/pyAQ/HQkHqSdGM7jW5c3trN hvVQ8TdXF+bePIReC8bGnqCsMjlnuSA8T+qxHS7+JfObn3BmDVs/Uty704Gkb1qM vUpfZLNimq8hQTwLb0tDhwL63K/DAMKa3Lmlzu4UzY6X0gRfRySNYT3j2TLzleRI jmyCCkCKgLKnALrd3wPUZ2xU+qIsxP5hv1zvY2S0xphMdEUgwOYKWyIMzU0RIIEr esswcT4kkAZE6UIzttrM0UM7UyjghfBBrWeSI6eCRIkfbmf5PhdL8QdU7QX6iC+S /zB/pjHr+4SPcwRcqD6MGjdCSlED4Y6YXlpj0e1eZseIm89vyaSxVWDcUUPJcv8W ujFMUCeg40jZTwIDlQtovm8rePd1Z00Lyz95x4oEgkpTRkAvt5ogu8lDaOsBEWvF zL/nXZQw5yKYf2FwZ6rBlHbnz79sMJqdJP1vu2hxERXTxNOIMXoHjyNV7Oa7P9GI eTBXcQwhgPk= =i43E -----END PGP SIGNATURE-----