CVE-2018-3639

Impact:
Important
Public Date:
2018-05-21
CWE:
CWE-200
Bugzilla:
1566890: CVE-2018-3639 hw: cpu: speculative store bypass
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.

Find out more about CVE-2018-3639 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/ssbd

CVSS v3 metrics

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity Impact None
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (redhat-virtualization-host) RHSA-2018:1710 2018-05-23
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (rhev-hypervisor7) RHSA-2018:1711 2018-05-23
Red Hat Virtualization 4 (rhvm-setup-plugins) RHSA-2018:1674 2018-05-22
Red Hat OpenStack Platform 12.0 (qemu-kvm-rhev) RHSA-2018:1643 2018-05-22
Red Hat Enterprise Linux Server Update Services for SAP Solutions 7.2 (qemu-kvm) RHSA-2018:1661 2018-05-22
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 (qemu-kvm-rhev) RHSA-2018:1686 2018-05-22
Red Hat Enterprise Linux Server Update Services for SAP Solutions 7.2 (libvirt) RHSA-2018:1668 2018-05-22
Red Hat Enterprise Linux Extended Update Support 7.3 (kernel) RHSA-2018:1737 2018-05-29
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2018:1642 2018-05-22
Red Hat Enterprise Linux 7 (libvirt) RHSA-2018:1632 2018-05-22
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (qemu-kvm-rhev) RHSA-2018:1654 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 7.2 (kernel) RHSA-2018:1637 2018-05-29
Red Hat Enterprise Linux Advanced Update Support 6.4 (qemu-kvm) RHSA-2018:1656 2018-05-22
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (vdsm) RHSA-2018:1675 2018-05-22
Red Hat Enterprise Linux 6 (java-1.8.0-openjdk) RHSA-2018:1650 2018-05-21
Red Hat Enterprise Linux 6 (kernel) RHSA-2018:1651 2018-05-21
Red Hat Enterprise Linux Server Update Services for SAP Solutions 7.2 (kernel) RHSA-2018:1637 2018-05-29
Red Hat Enterprise Linux 7 (java-1.7.0-openjdk) RHSA-2018:1648 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 6.6 (qemu-kvm) RHSA-2018:1658 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 6.5 (kernel) RHSA-2018:1640 2018-05-29
Red Hat Enterprise Linux Extended Update Support 7.3 (qemu-kvm) RHSA-2018:1662 2018-05-22
Red Hat OpenStack Platform 10 (qemu-kvm-rhev) RHSA-2018:1644 2018-05-22
Red Hat Enterprise Linux 6 (kernel) RHSA-2018:1854 2018-06-19
RHEV Hypervisor for RHEL-6 (rhev-hypervisor7) RHSA-2018:1711 2018-05-23
Red Hat Enterprise Linux Advanced Update Support 6.6 (kernel) RHSA-2018:1639 2018-05-29
Red Hat Enterprise Linux Extended Update Support 7.4 (kernel) RHSA-2018:1738 2018-05-29
Red Hat Virtualization 4 (org.ovirt.engine-root) RHSA-2018:1676 2018-05-22
Red Hat Enterprise Linux Extended Update Support 6.7 (libvirt) RHSA-2018:1667 2018-05-22
Red Hat Enterprise Linux Extended Update Support 6.7 (kernel) RHSA-2018:1826 2018-06-12
Red Hat Enterprise Linux Extended Update Support 7.4 (qemu-kvm) RHSA-2018:1663 2018-05-22
Red Hat OpenStack Platform 8.0 (Liberty) (qemu-kvm-rhev) RHSA-2018:1646 2018-05-22
Red Hat Enterprise Linux Server TUS (v. 6.6) (qemu-kvm) RHSA-2018:1658 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 7.2 (libvirt) RHSA-2018:1668 2018-05-22
Red Hat Enterprise Linux Extended Update Support 7.4 (libvirt) RHSA-2018:1652 2018-05-22
Red Hat Enterprise Linux Extended Update Support 7.4 (kernel) RHSA-2018:1635 2018-05-22
Red Hat Enterprise Linux Server TUS (v. 6.6) (libvirt) RHSA-2018:1666 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 7.2 (qemu-kvm) RHSA-2018:1661 2018-05-22
Red Hat Enterprise Linux 7 (kernel) RHSA-2018:1629 2018-05-22
Red Hat Enterprise Linux 6 (qemu-kvm) RHSA-2018:1660 2018-05-21
Red Hat Enterprise Linux Server TUS (v. 7.2) (qemu-kvm) RHSA-2018:1661 2018-05-22
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2018:1630 2018-05-21
Red Hat Enterprise Linux Advanced Update Support 6.4 (libvirt) RHSA-2018:1664 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 6.5 (libvirt) RHSA-2018:1665 2018-05-22
Red Hat Enterprise Linux 7 (java-1.8.0-openjdk) RHSA-2018:1649 2018-05-22
Red Hat Enterprise Linux 6 (libvirt) RHSA-2018:1669 2018-05-22
Red Hat Enterprise Linux Advanced Update Support 6.4 (kernel) RHSA-2018:1641 2018-05-29
Red Hat Enterprise Linux Server TUS (v. 7.2) (libvirt) RHSA-2018:1668 2018-05-22
Red Hat OpenStack Platform 9.0 (qemu-kvm-rhev) RHSA-2018:1645 2018-05-22
Red Hat Enterprise Linux 6 (java-1.7.0-openjdk) RHSA-2018:1647 2018-05-21
Red Hat Enterprise Linux Extended Update Support 7.3 (kernel) RHSA-2018:1636 2018-05-22
Red Hat Enterprise Linux Server TUS (v. 6.6) (kernel) RHSA-2018:1639 2018-05-29
Red Hat Enterprise Linux Advanced Update Support 6.5 (qemu-kvm) RHSA-2018:1657 2018-05-22
Red Hat Enterprise Linux Extended Update Support 7.3 (libvirt) RHSA-2018:1653 2018-05-22
RHEV Manager 3 (org.ovirt.engine-root) RHSA-2018:1688 2018-05-22
Red Hat Enterprise Linux Extended Update Support 6.7 (kernel) RHSA-2018:1638 2018-05-29
Red Hat Enterprise Linux Advanced Update Support 6.6 (libvirt) RHSA-2018:1666 2018-05-22
Red Hat Enterprise Linux Extended Update Support 6.7 (qemu-kvm) RHSA-2018:1659 2018-05-22
RHEV Manager 3 (rhevm-setup-plugins) RHSA-2018:1689 2018-05-22
Red Hat Enterprise Linux Server TUS (v. 7.2) (kernel) RHSA-2018:1637 2018-05-29
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (qemu-kvm-rhev) RHSA-2018:1655 2018-05-21
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (redhat-virtualization-host) RHSA-2018:1696 2018-05-23
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (vdsm) RHSA-2018:1690 2018-05-22
Red Hat Enterprise Linux 7 (qemu-kvm) RHSA-2018:1633 2018-05-22

Affected Packages State

Platform Package State
Red Hat Virtualization 4 ovirt-guest-agent Affected
Red Hat Virtualization 4 ovirt-engine Affected
Red Hat Virtualization 4 rhev-hypervisor-ng Affected
Red Hat Virtualization 4 rhevm-setup-plugins Affected
Red Hat OpenStack Platform 11.0 (Ocata) qemu-kvm-rhev Affected
Red Hat Enterprise Linux 7 kernel-alt Affected
Red Hat Enterprise Linux 7 microcode_ctl Affected
Red Hat Enterprise Linux 7 qemu-kvm-ma Affected
Red Hat Enterprise Linux 6 microcode_ctl Affected
Red Hat Enterprise Linux 5 kernel Affected
Red Hat Enterprise Linux 5 microcode_ctl Affected
RHEV Manager 3 rhev-hypervisor-ng Affected
RHEV Manager 3 rhev-hypervisor Affected
RHEV Manager 3 vdsm Affected
RHEV Manager 3 ovirt-engine Affected

Acknowledgements

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.

External References

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