CentOS 8 : virt:rhel and virt-devel:rhel (CESA-2021:1762)

medium Nessus Plugin ID 149772
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote CentOS host is missing one or more security updates.

Description

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:1762 advisory.

- QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure (CVE-2020-11947)

- QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092)

- libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c (CVE-2020-25637)

- QEMU: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c (CVE-2020-25707)

- QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c (CVE-2020-25723)

- QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c (CVE-2020-27821)

- QEMU: e1000e: infinite loop scenario in case of null packet descriptor (CVE-2020-28916)

- CVE-2020-29130 QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets (CVE-2020-29129)

- CVE-2020-29129 QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets (CVE-2020-29130)

- QEMU: ide: atapi: OOB access while processing read commands (CVE-2020-29443)

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

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2021:1762

Plugin Details

Severity: Medium

ID: 149772

File Name: centos8_RHSA-2021-1762.nasl

Version: 1.2

Type: local

Agent: unix

Published: 5/19/2021

Updated: 5/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-25637

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:SLOF, p-cpe:/a:centos:centos:hivex, p-cpe:/a:centos:centos:hivex-devel, p-cpe:/a:centos:centos:libguestfs-winsupport, p-cpe:/a:centos:centos:libiscsi, p-cpe:/a:centos:centos:libiscsi-devel, p-cpe:/a:centos:centos:libiscsi-utils, p-cpe:/a:centos:centos:libnbd, p-cpe:/a:centos:centos:libnbd-devel, p-cpe:/a:centos:centos:libvirt-dbus, p-cpe:/a:centos:centos:nbdfuse, p-cpe:/a:centos:centos:nbdkit, p-cpe:/a:centos:centos:nbdkit-bash-completion, p-cpe:/a:centos:centos:nbdkit-basic-filters, p-cpe:/a:centos:centos:nbdkit-basic-plugins, p-cpe:/a:centos:centos:nbdkit-curl-plugin, p-cpe:/a:centos:centos:nbdkit-devel, p-cpe:/a:centos:centos:nbdkit-example-plugins, p-cpe:/a:centos:centos:nbdkit-gzip-plugin, p-cpe:/a:centos:centos:nbdkit-linuxdisk-plugin, p-cpe:/a:centos:centos:nbdkit-python-plugin, p-cpe:/a:centos:centos:nbdkit-server, p-cpe:/a:centos:centos:nbdkit-ssh-plugin, p-cpe:/a:centos:centos:nbdkit-vddk-plugin, p-cpe:/a:centos:centos:nbdkit-xz-filter, p-cpe:/a:centos:centos:netcf, p-cpe:/a:centos:centos:netcf-devel, p-cpe:/a:centos:centos:netcf-libs, p-cpe:/a:centos:centos:ocaml-hivex, p-cpe:/a:centos:centos:ocaml-hivex-devel, p-cpe:/a:centos:centos:ocaml-libnbd, p-cpe:/a:centos:centos:ocaml-libnbd-devel, p-cpe:/a:centos:centos:perl-Sys-Virt, p-cpe:/a:centos:centos:perl-hivex, p-cpe:/a:centos:centos:python3-hivex, p-cpe:/a:centos:centos:python3-libnbd, p-cpe:/a:centos:centos:python3-libvirt, p-cpe:/a:centos:centos:ruby-hivex, p-cpe:/a:centos:centos:seabios, p-cpe:/a:centos:centos:seabios-bin, p-cpe:/a:centos:centos:seavgabios-bin, p-cpe:/a:centos:centos:sgabios, p-cpe:/a:centos:centos:sgabios-bin, p-cpe:/a:centos:centos:supermin, p-cpe:/a:centos:centos:supermin-devel

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 7/23/2020

Reference Information

CVE: CVE-2020-11947, CVE-2020-16092, CVE-2020-25637, CVE-2020-25707, CVE-2020-25723, CVE-2020-27821, CVE-2020-28916, CVE-2020-29129, CVE-2020-29130, CVE-2020-29443

RHSA: 2021:1762