kernel, perf, python security update


**CentOS Errata and Security Advisory** CESA-2017:0386 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. **Merged security bulletin from advisories:** https://lists.centos.org/pipermail/centos-announce/2017-March/059243.html **Affected packages:** kernel kernel-abi-whitelists kernel-debug kernel-debug-devel kernel-devel kernel-doc kernel-headers kernel-tools kernel-tools-libs kernel-tools-libs-devel perf python-perf **Upstream details at:** https://access.redhat.com/errata/RHSA-2017:0386

Affected Package

OS OS Version Package Name Package Version
CentOS 7 kernel 3.10.0-514.10.2.el7
CentOS 7 kernel-abi-whitelists 3.10.0-514.10.2.el7
CentOS 7 kernel-debug 3.10.0-514.10.2.el7
CentOS 7 kernel-debug-devel 3.10.0-514.10.2.el7
CentOS 7 kernel-devel 3.10.0-514.10.2.el7
CentOS 7 kernel-doc 3.10.0-514.10.2.el7
CentOS 7 kernel-headers 3.10.0-514.10.2.el7
CentOS 7 kernel-tools 3.10.0-514.10.2.el7
CentOS 7 kernel-tools-libs 3.10.0-514.10.2.el7
CentOS 7 kernel-tools-libs-devel 3.10.0-514.10.2.el7
CentOS 7 perf 3.10.0-514.10.2.el7
CentOS 7 python-perf 3.10.0-514.10.2.el7
CentOS 7 kernel 3.10.0-514.10.2.el7