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CVE-2017-18216

Status Candidate

Overview

In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

Related Files

Ubuntu Security Notice USN-3798-2
Posted Oct 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3798-2 - USN-3798-1 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. Dmitry Vyukov discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is negatively instantiated. 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, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-8539, CVE-2016-7913, CVE-2017-0794, CVE-2017-15299, CVE-2017-18216, CVE-2018-1000004, CVE-2018-7566, CVE-2018-9518
MD5 | bfdc7594d98be96ce72f6fbcd1096bfb
Ubuntu Security Notice USN-3798-1
Posted Oct 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3798-1 - Dmitry Vyukov discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is negatively instantiated. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a use-after-free vulnerability existed in the device driver for XCeive xc2028/xc3028 tuners in 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-2015-8539, CVE-2016-7913, CVE-2017-0794, CVE-2017-15299, CVE-2017-18216, CVE-2018-1000004, CVE-2018-7566, CVE-2018-9518
MD5 | bec3cbcb9fd27fc7ef0ed57a2e374431
Ubuntu Security Notice USN-3776-2
Posted Oct 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3776-2 - USN-3776-1 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. Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-18216, CVE-2018-10902, CVE-2018-14633, CVE-2018-15572, CVE-2018-15594, CVE-2018-16276, CVE-2018-17182, CVE-2018-6554, CVE-2018-6555
MD5 | 756be1d516df5a9777a07b3fe8971a35
Ubuntu Security Notice USN-3776-1
Posted Oct 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3776-1 - Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-18216, CVE-2018-10902, CVE-2018-14633, CVE-2018-15572, CVE-2018-15594, CVE-2018-16276, CVE-2018-17182, CVE-2018-6554, CVE-2018-6555
MD5 | 0fd4ffabf15eba8599f2deb0222a96ac
Debian Security Advisory 4188-1
Posted May 3, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4188-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2017-17975, CVE-2017-18193, CVE-2017-18216, CVE-2017-18218, CVE-2017-18222, CVE-2017-18224, CVE-2017-18241, CVE-2017-18257, CVE-2017-5715, CVE-2017-5753, CVE-2018-1000199, CVE-2018-10323, CVE-2018-1065, CVE-2018-1066, CVE-2018-1068, CVE-2018-1092, CVE-2018-1093, CVE-2018-1108, CVE-2018-5803, CVE-2018-7480, CVE-2018-7566, CVE-2018-7740, CVE-2018-7757, CVE-2018-7995, CVE-2018-8087, CVE-2018-8781, CVE-2018-8822
MD5 | 40218a570ce7c1511b3faa47a7e18487
Debian Security Advisory 4187-1
Posted May 3, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4187-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-9016, CVE-2017-0861, CVE-2017-13166, CVE-2017-13220, CVE-2017-16526, CVE-2017-16911, CVE-2017-16912, CVE-2017-16913, CVE-2017-16914, CVE-2017-18017, CVE-2017-18203, CVE-2017-18216, CVE-2017-18232, CVE-2017-18241, CVE-2017-5715, CVE-2017-5753, CVE-2018-1000004, CVE-2018-1000199, CVE-2018-1066, CVE-2018-1068, CVE-2018-1092, CVE-2018-5332, CVE-2018-5333, CVE-2018-5750, CVE-2018-5803, CVE-2018-6927, CVE-2018-7492
MD5 | 8f53637cc7f7ef1bdf7110ecc11496aa
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