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CVE-2016-9083

Status Candidate

Overview

drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."

Related Files

Ubuntu Security Notice USN-3422-2
Posted Sep 19, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3422-2 - USN-3422-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-10044, CVE-2016-10200, CVE-2016-7097, CVE-2016-8650, CVE-2016-9083, CVE-2016-9084, CVE-2016-9178, CVE-2016-9191, CVE-2016-9604, CVE-2016-9754, CVE-2017-1000251, CVE-2017-5970, CVE-2017-6214, CVE-2017-6346, CVE-2017-6951, CVE-2017-7187, CVE-2017-7472, CVE-2017-7541
SHA-256 | e27780348a8f8c6fe548f4fc823a3618d213ad1642631507a915d8fe3daa444c
Ubuntu Security Notice USN-3422-1
Posted Sep 19, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3422-1 - It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service. It was discovered that the asynchronous I/O subsystem of the Linux kernel did not properly set permissions on aio memory mappings in some situations. An attacker could use this to more easily exploit other vulnerabilities. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-10044, CVE-2016-10200, CVE-2016-7097, CVE-2016-8650, CVE-2016-9083, CVE-2016-9084, CVE-2016-9178, CVE-2016-9191, CVE-2016-9604, CVE-2016-9754, CVE-2017-1000251, CVE-2017-5970, CVE-2017-6214, CVE-2017-6346, CVE-2017-6951, CVE-2017-7187, CVE-2017-7472, CVE-2017-7541
SHA-256 | 59a73826987ffa71daea232f292915ef55c02017c0d971591db5164b7d4e6e9d
Ubuntu Security Notice USN-3361-1
Posted Jul 21, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3361-1 - USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from Ubuntu 16.10. Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-1350, CVE-2016-10208, CVE-2016-8405, CVE-2016-8636, CVE-2016-9083, CVE-2016-9084, CVE-2016-9191, CVE-2016-9604, CVE-2016-9755, CVE-2017-2583, CVE-2017-2584, CVE-2017-2596, CVE-2017-2618, CVE-2017-2671, CVE-2017-5546, CVE-2017-5549, CVE-2017-5550, CVE-2017-5551, CVE-2017-5576, CVE-2017-5669, CVE-2017-5897, CVE-2017-5970, CVE-2017-6001, CVE-2017-6214, CVE-2017-6345, CVE-2017-6346, CVE-2017-6347, CVE-2017-6348
SHA-256 | a02dd5836ffae854b87f99a0c65d15d6c8e6dd7ae37fde2f48b13dc8494472d6
Ubuntu Security Notice USN-3312-2
Posted Jun 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3312-2 - USN-3312-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that the netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7913, CVE-2016-7917, CVE-2016-8632, CVE-2016-9083, CVE-2016-9084, CVE-2016-9604, CVE-2017-0605, CVE-2017-2596, CVE-2017-2671, CVE-2017-6001, CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889, CVE-2017-7895
SHA-256 | 9bc4f5c509d58e7374d08b91a33f59e8cc908ffa5e09f39be89e361fa0dd271e
Ubuntu Security Notice USN-3312-1
Posted Jun 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3312-1 - It was discovered that the netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7913, CVE-2016-7917, CVE-2016-8632, CVE-2016-9083, CVE-2016-9084, CVE-2016-9604, CVE-2017-0605, CVE-2017-2596, CVE-2017-2671, CVE-2017-6001, CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889, CVE-2017-7895
SHA-256 | f93b3056d137e6f094a683c78f33de2cfc51578e2b30f5bf0580b49f3136e70e
Red Hat Security Advisory 2017-0387-01
Posted Mar 3, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0387-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: Linux kernel built with the Kernel-based Virtual Machine 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.

tags | advisory, x86, kernel
systems | linux, redhat
advisories | CVE-2016-8630, CVE-2016-8655, CVE-2016-9083, CVE-2016-9084
SHA-256 | d61e4a6a0cda3ead6a381937c87a218e78b571abab76a989734954dcaa7056e7
Red Hat Security Advisory 2017-0386-01
Posted Mar 3, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0386-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: Linux kernel built with the Kernel-based Virtual Machine 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.

tags | advisory, x86, kernel
systems | linux, redhat
advisories | CVE-2016-8630, CVE-2016-8655, CVE-2016-9083, CVE-2016-9084
SHA-256 | 476a8bf0397fcb73d59efcb4da6e383b69f0df7fdf6f5c4349d6a3a0a5ca5314
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