-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: libvirt security update Advisory ID: RHSA-2018:3402-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:3402 Issue date: 2018-10-30 CVE Names: CVE-2018-3639 ==================================================================== 1. Summary: An update for libvirt is now available for Red Hat Enterprise Linux 6.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64 Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64 Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - x86_64 3. Description: The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems. Security Fix(es): * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639 virt-ssbd AMD) Note: This is the libvirt side of the CVE-2018-3639 mitigation. Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the updated packages, libvirtd will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass 6. Package List: Red Hat Enterprise Linux HPC Node EUS (v. 6.7): Source: libvirt-0.10.2-54.el6_7.9.src.rpm x86_64: libvirt-0.10.2-54.el6_7.9.x86_64.rpm libvirt-client-0.10.2-54.el6_7.9.i686.rpm libvirt-client-0.10.2-54.el6_7.9.x86_64.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.i686.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.x86_64.rpm libvirt-python-0.10.2-54.el6_7.9.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7): x86_64: libvirt-debuginfo-0.10.2-54.el6_7.9.i686.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.x86_64.rpm libvirt-devel-0.10.2-54.el6_7.9.i686.rpm libvirt-devel-0.10.2-54.el6_7.9.x86_64.rpm libvirt-lock-sanlock-0.10.2-54.el6_7.9.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 6.7): Source: libvirt-0.10.2-54.el6_7.9.src.rpm i386: libvirt-0.10.2-54.el6_7.9.i686.rpm libvirt-client-0.10.2-54.el6_7.9.i686.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.i686.rpm libvirt-devel-0.10.2-54.el6_7.9.i686.rpm libvirt-python-0.10.2-54.el6_7.9.i686.rpm ppc64: libvirt-0.10.2-54.el6_7.9.ppc64.rpm libvirt-client-0.10.2-54.el6_7.9.ppc.rpm libvirt-client-0.10.2-54.el6_7.9.ppc64.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.ppc.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.ppc64.rpm libvirt-devel-0.10.2-54.el6_7.9.ppc.rpm libvirt-devel-0.10.2-54.el6_7.9.ppc64.rpm libvirt-python-0.10.2-54.el6_7.9.ppc64.rpm s390x: libvirt-0.10.2-54.el6_7.9.s390x.rpm libvirt-client-0.10.2-54.el6_7.9.s390.rpm libvirt-client-0.10.2-54.el6_7.9.s390x.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.s390.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.s390x.rpm libvirt-devel-0.10.2-54.el6_7.9.s390.rpm libvirt-devel-0.10.2-54.el6_7.9.s390x.rpm libvirt-python-0.10.2-54.el6_7.9.s390x.rpm x86_64: libvirt-0.10.2-54.el6_7.9.x86_64.rpm libvirt-client-0.10.2-54.el6_7.9.i686.rpm libvirt-client-0.10.2-54.el6_7.9.x86_64.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.i686.rpm libvirt-debuginfo-0.10.2-54.el6_7.9.x86_64.rpm libvirt-devel-0.10.2-54.el6_7.9.i686.rpm libvirt-devel-0.10.2-54.el6_7.9.x86_64.rpm libvirt-python-0.10.2-54.el6_7.9.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 6.7): x86_64: libvirt-debuginfo-0.10.2-54.el6_7.9.x86_64.rpm libvirt-lock-sanlock-0.10.2-54.el6_7.9.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/ 7. References: https://access.redhat.com/security/cve/CVE-2018-3639 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ssbd 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW9hpxNzjgjWX9erEAQjwGBAAqHG531niTB/cbOITk9h4J/gORGbKgWr+ sfyRvQyL4xRtZ+b8+yxX3vU8rmh/AVBGAqD0rK+4KI90jKTXDjoJ+j6zJxrm84SC k5r1Y0YA+ijEdfxSinH35UflQl7Hq52ycD3R1Yg3eGXzFMX2fzWJjsw7IfIcIq2S HCfl1otUPDAAzJVJtFu8E5tLFW2O0se6p6GlI3VWMl02TmmfPWLpS5vrjhXQHqBu chAwbY4q2pK2MG8/C8wyIKPt7uEEOclX7YN6+Cmd35Sk2/9C6/8gvOXdb0LRz6Jd u4R0zHGJXGSW3LGDmSjrYtvzkV2thIXkzRSj+2AucFpovT7zsTq36B8rBNQPws4K 7HjsKvzeHzhGlSSlozTAz+c9ce6ZDaa9w5RwQgdUyFBB9rBsL42wu8Po57Itg0Gd SUHsMLdz4zFDipGCJRtZUqXsWvGpdajABlHHubVaH6rWS5RCC7FPprdaukSJbMNB eCAlP/9/RAz/AvOG5EblXC495oQ+oU+dfMyETe4PB5TmCwVhRJ9vegIgmEEB1e+E 6mbzxer/YZiR5BPNDq2jnd63f1AYGxuWG2nedTkf0CXHYbDDTWBF28C13N+gYS9K AjYfu134huMAcJhnO472MCvXrFBaLIgert+U5qc9ea1OQ8VLfg1fEmhfH/2xOtn9 O3PzVh2o4UAp7 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce