SUSE SLES12 Security Update : qemu (SUSE-SU-2022:1151-1)

medium Nessus Plugin ID 159661

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Synopsis

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

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1151-1 advisory.

- A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device.
This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. (CVE-2021-20196)

- An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
(CVE-2021-3930)

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.

Plugin Details

Severity: Medium

ID: 159661

File Name: suse_SU-2022-1151-1.nasl

Version: 1.5

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/12/2022

Updated: 7/13/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-3930

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:qemu-block-ssh, p-cpe:/a:novell:suse_linux:qemu-sgabios, p-cpe:/a:novell:suse_linux:qemu-lang, p-cpe:/a:novell:suse_linux:qemu-block-iscsi, p-cpe:/a:novell:suse_linux:qemu-ui-sdl, p-cpe:/a:novell:suse_linux:qemu-audio-alsa, p-cpe:/a:novell:suse_linux:qemu-ppc, p-cpe:/a:novell:suse_linux:qemu-audio-sdl, p-cpe:/a:novell:suse_linux:qemu-block-curl, p-cpe:/a:novell:suse_linux:qemu-kvm, p-cpe:/a:novell:suse_linux:qemu-guest-agent, p-cpe:/a:novell:suse_linux:qemu-seabios, p-cpe:/a:novell:suse_linux:qemu, p-cpe:/a:novell:suse_linux:qemu-ui-curses, p-cpe:/a:novell:suse_linux:qemu-ipxe, p-cpe:/a:novell:suse_linux:qemu-vgabios, p-cpe:/a:novell:suse_linux:qemu-arm, p-cpe:/a:novell:suse_linux:qemu-block-rbd, p-cpe:/a:novell:suse_linux:qemu-audio-pa, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:qemu-x86, p-cpe:/a:novell:suse_linux:qemu-audio-oss, p-cpe:/a:novell:suse_linux:qemu-ui-gtk, p-cpe:/a:novell:suse_linux:qemu-tools, p-cpe:/a:novell:suse_linux:qemu-s390

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/11/2022

Vulnerability Publication Date: 5/26/2021

Reference Information

CVE: CVE-2021-20196, CVE-2021-3930

SuSE: SUSE-SU-2022:1151-1

Detections

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