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CVE-2018-10853

Status Candidate

Overview

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

Related Files

Red Hat Security Advisory 2020-0179-01
Posted Jan 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0179-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-18281, CVE-2019-11599
SHA-256 | 0d5a0f10b1f5201a55ee5d74a0dcbb1f48b8429af6b4c428ed98e86453972dae
Red Hat Security Advisory 2020-0103-01
Posted Jan 14, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0103-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-18281, CVE-2018-20856, CVE-2019-11599, CVE-2019-6974
SHA-256 | fcb90197bf847c6ebafd82de864d910086dc1d311169e67eb45ec1ca8f2ab402
Red Hat Security Advisory 2020-0036-01
Posted Jan 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0036-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2017-0861, CVE-2017-10661, CVE-2018-10853, CVE-2018-18281, CVE-2019-11810, CVE-2019-11811
SHA-256 | 1e0f0fd70b306e09392d1b9748151af1a86a0d713f765efd696043bf2e820c1d
Red Hat Security Advisory 2019-2043-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2043-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-13053, CVE-2018-13093, CVE-2018-13094, CVE-2018-13095, CVE-2018-14625, CVE-2018-14734, CVE-2018-15594, CVE-2018-16658, CVE-2018-16885, CVE-2018-18281, CVE-2018-7755, CVE-2018-8087, CVE-2018-9363, CVE-2018-9516, CVE-2018-9517, CVE-2019-11599, CVE-2019-11810, CVE-2019-11833, CVE-2019-3459, CVE-2019-3460, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222
SHA-256 | e071d742d6603367cb65da2c4efe950228d4321aa8233e8b9ddce2ca45118e06
Red Hat Security Advisory 2019-2029-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2029-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-13053, CVE-2018-13093, CVE-2018-13094, CVE-2018-13095, CVE-2018-14625, CVE-2018-14734, CVE-2018-15594, CVE-2018-16658, CVE-2018-16885, CVE-2018-18281, CVE-2018-7755, CVE-2018-8087, CVE-2018-9363, CVE-2018-9516, CVE-2018-9517, CVE-2019-11599, CVE-2019-11810, CVE-2019-11833, CVE-2019-3459, CVE-2019-3460, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222
SHA-256 | bac8beb8ce1ab8e43186837924865c4859c9dd53f0986287f9d903fc550005c1
Ubuntu Security Notice USN-3777-2
Posted Oct 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3777-2 - USN-3777-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 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-2018-10853, CVE-2018-14633, CVE-2018-15572, CVE-2018-15594, CVE-2018-17182, CVE-2018-6554, CVE-2018-6555
SHA-256 | 19e56ea426f696a74aa692607d87804e67eeaa6dfd9e083466313919a494c760
Ubuntu Security Notice USN-3777-1
Posted Oct 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3777-1 - 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-2018-10853, CVE-2018-14633, CVE-2018-15572, CVE-2018-15594, CVE-2018-17182, CVE-2018-6554, CVE-2018-6555
SHA-256 | 5db6c7887e9651017faced7ba733531733f1515003351691c185c6a854134435
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