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CVE-2017-14156

Status Candidate

Overview

The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes.

Related Files

Ubuntu Security Notice USN-3583-2
Posted Feb 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3583-2 - USN-3583-1 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 ESM. It was discovered that an out-of-bounds write vulnerability existed in the Flash-Friendly File System in the Linux kernel. An attacker could construct a malicious file system that, when mounted, could cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-0750, CVE-2017-0861, CVE-2017-1000407, CVE-2017-12153, CVE-2017-12190, CVE-2017-12192, CVE-2017-14051, CVE-2017-14140, CVE-2017-14156, CVE-2017-14489, CVE-2017-15102, CVE-2017-15115, CVE-2017-15274, CVE-2017-15868, CVE-2017-16525, CVE-2017-17450, CVE-2017-17806, CVE-2017-18017, CVE-2017-5669, CVE-2017-7542, CVE-2017-7889, CVE-2017-8824, CVE-2018-5333, CVE-2018-5344
SHA-256 | 25ede7de1d2b86456063e72f35df6f1394e7346ba13182c33a91a7d898707f22
Ubuntu Security Notice USN-3583-1
Posted Feb 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3583-1 - It was discovered that an out-of-bounds write vulnerability existed in the Flash-Friendly File System in the Linux kernel. An attacker could construct a malicious file system that, when mounted, could cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-0750, CVE-2017-0861, CVE-2017-1000407, CVE-2017-12153, CVE-2017-12190, CVE-2017-12192, CVE-2017-14051, CVE-2017-14140, CVE-2017-14156, CVE-2017-14489, CVE-2017-15102, CVE-2017-15115, CVE-2017-15274, CVE-2017-15868, CVE-2017-16525, CVE-2017-17450, CVE-2017-17806, CVE-2017-18017, CVE-2017-5669, CVE-2017-5754, CVE-2017-7542, CVE-2017-7889, CVE-2017-8824, CVE-2018-5333, CVE-2018-5344
SHA-256 | c97e450d76e9b8840d64e1081483c6c94471a1697c00daa71cb7174818ece0d4
Ubuntu Security Notice USN-3487-1
Posted Nov 22, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3487-1 - It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code in the host OS. It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the signal stack when handling sigreturn. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000255, CVE-2017-12153, CVE-2017-12154, CVE-2017-12188, CVE-2017-12190, CVE-2017-12192, CVE-2017-14156, CVE-2017-14489, CVE-2017-14954, CVE-2017-15265, CVE-2017-15537, CVE-2017-15649, CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529, CVE-2017-16530, CVE-2017-16531, CVE-2017-16533, CVE-2017-16534
SHA-256 | 5d3daa3acae196e215ffb752dacad9fbeacb9381db28059612dbc4bf68e35c68
Ubuntu Security Notice USN-3469-1
Posted Oct 31, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3469-1 - Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. Bo Zhang discovered that the netlink wireless configuration interface in the Linux kernel did not properly validate attributes when handling certain requests. A local attacker with the CAP_NET_ADMIN could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-10911, CVE-2017-12153, CVE-2017-12154, CVE-2017-12192, CVE-2017-14051, CVE-2017-14156, CVE-2017-14340, CVE-2017-14489, CVE-2017-14991, CVE-2017-15537, CVE-2017-9984, CVE-2017-9985
SHA-256 | 04cc3e67a19f3ee8637e2800765e1cf7c138d3aee0e7534753e7272826f5de09
Ubuntu Security Notice USN-3469-2
Posted Oct 31, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3469-2 - USN-3469-1 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. Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-10911, CVE-2017-12153, CVE-2017-12154, CVE-2017-12192, CVE-2017-14051, CVE-2017-14156, CVE-2017-14340, CVE-2017-14489, CVE-2017-14991, CVE-2017-15537, CVE-2017-9984, CVE-2017-9985
SHA-256 | 2581cae25d586f8b72eaa828c6ca5f97ec0fd29b3967bf2e5a8351f98d807994
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