-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2017:0386-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0386.html Issue date: 2017-03-02 CVE Names: CVE-2016-8630 CVE-2016-8655 CVE-2016-9083 CVE-2016-9084 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7. 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 Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS. (CVE-2016-8630, Important) * A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets implementation in the Linux kernel networking subsystem handled synchronization while creating the TPACKET_V3 ring buffer. A local user able to open a raw packet socket (requires the CAP_NET_RAW capability) could use this flaw to elevate their privileges on the system. (CVE-2016-8655, Important) * A flaw was discovered in the Linux kernel's implementation of VFIO. An attacker issuing an ioctl can create a situation where memory is corrupted and modify memory outside of the expected area. This may overwrite kernel memory and subvert kernel execution. (CVE-2016-9083, Important) * The use of a kzalloc with an integer multiplication allowed an integer overflow condition to be reached in vfio_pci_intrs.c. This combined with CVE-2016-9083 may allow an attacker to craft an attack and use unallocated memory, potentially crashing the machine. (CVE-2016-9084, Moderate) Red Hat would like to thank Philip Pettersson for reporting CVE-2016-8655. Additional Changes: Space precludes documenting all of the bug fixes and enhancements included in this advisory. To see the complete list of bug fixes and enhancements, refer to the following KnowledgeBase article: https://access.redhat.com/articles/2940041. 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1389258 - CVE-2016-9083 kernel: State machine confusion bug in vfio driver leading to memory corruption 1389259 - CVE-2016-9084 kernel: Integer overflow when using kzalloc in vfio driver 1393350 - CVE-2016-8630 kernel: kvm: x86: NULL pointer dereference during instruction decode 1400019 - CVE-2016-8655 kernel: Race condition in packet_set_ring leads to use after free 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-514.10.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.10.2.el7.noarch.rpm kernel-doc-3.10.0-514.10.2.el7.noarch.rpm x86_64: kernel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-headers-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.10.2.el7.x86_64.rpm perf-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-514.10.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.10.2.el7.noarch.rpm kernel-doc-3.10.0-514.10.2.el7.noarch.rpm x86_64: kernel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-headers-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.10.2.el7.x86_64.rpm perf-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-514.10.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.10.2.el7.noarch.rpm kernel-doc-3.10.0-514.10.2.el7.noarch.rpm ppc64: kernel-3.10.0-514.10.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-514.10.2.el7.ppc64.rpm kernel-debug-3.10.0-514.10.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-514.10.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.10.2.el7.ppc64.rpm kernel-devel-3.10.0-514.10.2.el7.ppc64.rpm kernel-headers-3.10.0-514.10.2.el7.ppc64.rpm kernel-tools-3.10.0-514.10.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-514.10.2.el7.ppc64.rpm perf-3.10.0-514.10.2.el7.ppc64.rpm perf-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm python-perf-3.10.0-514.10.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm ppc64le: kernel-3.10.0-514.10.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debug-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.10.2.el7.ppc64le.rpm kernel-devel-3.10.0-514.10.2.el7.ppc64le.rpm kernel-headers-3.10.0-514.10.2.el7.ppc64le.rpm kernel-tools-3.10.0-514.10.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-514.10.2.el7.ppc64le.rpm perf-3.10.0-514.10.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm python-perf-3.10.0-514.10.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm s390x: kernel-3.10.0-514.10.2.el7.s390x.rpm kernel-debug-3.10.0-514.10.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.s390x.rpm kernel-debug-devel-3.10.0-514.10.2.el7.s390x.rpm kernel-debuginfo-3.10.0-514.10.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-514.10.2.el7.s390x.rpm kernel-devel-3.10.0-514.10.2.el7.s390x.rpm kernel-headers-3.10.0-514.10.2.el7.s390x.rpm kernel-kdump-3.10.0-514.10.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-514.10.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-514.10.2.el7.s390x.rpm perf-3.10.0-514.10.2.el7.s390x.rpm perf-debuginfo-3.10.0-514.10.2.el7.s390x.rpm python-perf-3.10.0-514.10.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.s390x.rpm x86_64: kernel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-headers-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.10.2.el7.x86_64.rpm perf-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: kernel-debug-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.10.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.ppc64.rpm perf-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.10.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-514.10.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.10.2.el7.noarch.rpm kernel-doc-3.10.0-514.10.2.el7.noarch.rpm x86_64: kernel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-devel-3.10.0-514.10.2.el7.x86_64.rpm kernel-headers-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.10.2.el7.x86_64.rpm perf-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.10.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.10.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.10.2.el7.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-2016-8630 https://access.redhat.com/security/cve/CVE-2016-8655 https://access.redhat.com/security/cve/CVE-2016-9083 https://access.redhat.com/security/cve/CVE-2016-9084 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/2940041 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFYuIO9XlSAg2UNWIIRAneoAJ9Dl7tC/O5QcM4cxbQ/O7GpEhlqFgCggphP iNhwzasw45J7N7h/YrhN204= =AJ2E -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce