CVE-2021-3653

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Summary

CVECVE-2021-3653
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-29 20:15:00 UTC
Updated2023-05-16 10:49:00 UTC
DescriptionA flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.

Risk And Classification

Problem Types: CWE-862

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.14 - All All
Operating System Linux Linux Kernel 5.14 rc1 All All
Operating System Linux Linux Kernel 5.14 rc2 All All
Operating System Linux Linux Kernel 5.14 rc3 All All
Operating System Linux Linux Kernel 5.14 rc4 All All
Operating System Linux Linux Kernel 5.14 rc5 All All
Operating System Linux Linux Kernel 5.14 rc6 All All
Operating System Redhat Enterprise Linux 7.0 All All All

References

ReferenceSourceLinkTags
1983686 – (CVE-2021-3653) CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support) MISC bugzilla.redhat.com
oss-security - [CVE-2021-3653, CVE-2021-3656] SVM nested virtualization issues in KVM MISC www.openwall.com
[SECURITY] [DLA 2785-1] linux-4.19 security update MLIST lists.debian.org
Kernel Live Patch Security Notice LSN-0083-1 ≈ Packet Storm MISC packetstormsecurity.com
[SECURITY] [DLA 2843-1] linux security update MLIST lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159364 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9419)
  • 159365 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9420)
  • 159366 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9421)
  • 159367 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9422)
  • 159390 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-3548)
  • 159393 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9450)
  • 159394 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9451)
  • 159399 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9452)
  • 159400 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9453)
  • 159415 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-3801)
  • 159564 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9564)
  • 159565 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9565)
  • 159727 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2022-9245)
  • 159729 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9244)
  • 178809 Debian Security Update for linux (DSA 4978-1)
  • 178844 Debian Security Update for linux-4.19 (DLA 2785-1)
  • 178943 Debian Security Update for linux (DLA 2843-1)
  • 180002 Debian Security Update for linux (CVE-2021-3653)
  • 198487 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5071-1)
  • 198491 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5070-1)
  • 198495 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5072-1)
  • 198497 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5073-1)
  • 198502 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-5071-2)
  • 198504 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5082-1)
  • 198506 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-5073-2)
  • 239637 Red Hat Update for kernel (RHSA-2021:3548)
  • 239638 Red Hat Update for kernel-rt (RHSA-2021:3547)
  • 239656 Red Hat Update for kernel (RHSA-2021:3676)
  • 239675 Red Hat Update for kernel-rt (RHSA-2021:3802)
  • 239676 Red Hat Update for kernel (RHSA-2021:3801)
  • 239689 Red Hat Update for kernel-rt (RHSA-2021:3909)
  • 239691 Red Hat Update for kernel (RHSA-2021:3904)
  • 257119 CentOS Security Update for kernel (CESA-2021:3801)
  • 281837 Fedora Security Update for kernel (FEDORA-2021-a424256622)
  • 281838 Fedora Security Update for kernel (FEDORA-2021-33819e6b09)
  • 352839 Amazon Linux Security Advisory for kernel: ALAS2-2021-1704
  • 353155 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-005
  • 353242 Amazon Linux Security Advisory for kernel : ALAC2012-2022-036
  • 353243 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2022-037
  • 353244 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2022-038
  • 356186 Amazon Linux Security Advisory for microvm-kernel : ALASMICROVM-KERNEL-4.14-2023-003
  • 356218 Amazon Linux Security Advisory for microvm-kernel : ALASMICROVM-KERNEL-4.14-2023-002
  • 6140340 AWS Bottlerocket Security Update for kernel (GHSA-8cgp-qxm4-q3wm)
  • 671137 EulerOS Security Update for kernel (EulerOS-SA-2021-2713)
  • 671401 EulerOS Security Update for kernel (EulerOS-SA-2022-1328)
  • 751137 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1271-1)
  • 751155 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3192-1)
  • 751160 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3179-1)
  • 751163 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3206-1)
  • 751164 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 40 for SLE 12 SP3) (SUSE-SU-2021:3196-1)
  • 751170 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3205-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751451 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3935-1)
  • 751473 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3969-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
  • 900346 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5952)
  • 901731 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6575-1)
  • 905994 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5952-1)
  • 940221 AlmaLinux Security Update for kernel (ALSA-2021:3548)
  • 960735 Rocky Linux Security Update for kernel (RLSA-2021:3548)
  • 960783 Rocky Linux Security Update for kernel-rt (RLSA-2021:3547)
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