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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
SHA-256 | fd020e9154c2daad496c63782c19bbe804be952aa986f8f81262d8b5a00966e9
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
SHA-256 | 99fd6b610927b5b8387a7632ff8dda5701451a4843acca90e6d3e48acd81d539
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
SHA-256 | 3a7694cf511ebdcdcfdc1bb423fdbbd2d78e78e72dc14abdc3a315a6c014c11a
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
SHA-256 | 85a539d4dc80cce6215faa6eb351b7170e2643d3239efab5fc20f75531b26f35
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
SHA-256 | c04940bd4f6e00821a6373ebaafc1e5cd084607d9b3667203e468f8e5190068a
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
SHA-256 | e47605adb85ececbd4ae2974c9376652991663a139c1e597e8d245b3700d48a9
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