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Home CVE Database CVE-2018-18021

CVE-2018-18021

Description

arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation does not prevent unintended execution modes.

Priority: LOW
CVSS v3: 7.1
Component: linux
Publish Date: Oct 7, 2018
Related ID: --
CVSS v2: HIGH
Modified Date: Oct 7, 2018

Find out more about CVE-2018-18021 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-4796
10.17.41.13 Wind River Linux LTS 10.17.41.13
Wind River Linux LTS 10.17.41.14
Wind River Linux LTS 10.17.41.15
Wind River Linux LTS 10.17.41.16
Wind River Linux LTS 10.17.41.17
Wind River Linux LTS 10.17.41.18
Wind River Linux LTS 10.17.41.20
Wind River Linux LTS 10.17.41.21
Wind River Linux LTS 10.17.41.22
Wind River Linux LTS 10.17.41.23
Wind River Linux LTS 10.17.41.24
Wind River Linux LTS 10.17.41.25
Wind River Linux LTS 10.17.41.26
Wind River Linux LTS 10.17.41.27
Wind River Linux 8 Fixed LIN8-9876
8.0.0.29 --
Wind River Linux 9 Fixed LIN9-7560
9.0.0.20 --
Wind River Linux 7 Fixed -- 7.0.0.30 --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
Wind River Linux 6 Not Vulnerable -- -- --
Wind River Linux LTS 23 Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --
Helix Virtualization Platform Cert Edition
Helix Virtualization Platform Cert Edition Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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