Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: SLSA-2017:0386-1 Issue Date: 2017-03-02 CVE Numbers: CVE-2016-9083 CVE-2016-9084 CVE-2016-8630 CVE-2016-8655 -- 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) -- SL7 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 kernel-tools-libs-devel-3.10.0-514.10.2.el7.x86_64.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 - Scientific Linux Development Team