Oracle Linux 8 : virt:kvm_utils (ELSA-2022-9700)

high Nessus Plugin ID 163928

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9700 advisory.

- A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory. (CVE-2021-3507)

- A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process. (CVE-2021-4206)

- A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process. (CVE-2021-4207)

- libvirt: segmentation fault during VM shutdown can lead to vdsm hang (CVE-2021-3975)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2022-9700.html

Plugin Details

Severity: High

ID: 163928

File Name: oraclelinux_ELSA-2022-9700.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/9/2022

Updated: 8/9/2022

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2021-4207

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:oracle:linux:8:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-img:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-common:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-java:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-java-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-javadoc:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-tools-c:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:perl-sys-guestfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:ruby-libguestfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-client:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-lock-sanlock:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-guest-agent:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-config-network:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-config-nwfilter:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-interface:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-network:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-nodedev:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-nwfilter:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-qemu:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-secret:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-kvm:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-docs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-nss:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:hivex:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:hivex-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-bash-completion:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-benchmarking:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-gfs2:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-gobject:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-gobject-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-inspect-icons:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-man-pages-ja:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-man-pages-uk:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-rescue:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-rsync:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-winsupport:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libguestfs-xfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libiscsi:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libiscsi-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libiscsi-utils:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-admin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-bash-completion:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-core:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-disk:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-gluster:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-iscsi:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-logical:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-mpath:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-rbd:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-scsi:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-dbus:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:lua-guestfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-bash-completion:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-basic-plugins:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-example-plugins:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:netcf:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:netcf-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:netcf-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:perl-sys-virt:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:perl-hivex:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:python3-hivex:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:python3-libguestfs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:python3-libvirt:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-block-curl:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-block-gluster:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-block-iscsi:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-block-rbd:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-block-ssh:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:qemu-kvm-core:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:ruby-hivex:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:seabios:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:seabios-bin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:seavgabios-bin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:sgabios:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:sgabios-bin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:supermin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:supermin-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:virt-dib:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:virt-v2v:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libnbd:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libnbd-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:libvirt-daemon-driver-storage-iscsi-direct:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdfuse:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-basic-filters:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-curl-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-gzip-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-linuxdisk-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-python-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-server:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-ssh-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-vddk-plugin:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:nbdkit-xz-filter:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:python3-libnbd:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 8/8/2022

Vulnerability Publication Date: 5/6/2021

Reference Information

CVE: CVE-2021-3507, CVE-2021-3975, CVE-2021-4206, CVE-2021-4207