SUSE SLES12 Security Update : qemu (SUSE-SU-2023:2358-1)

high Nessus Plugin ID 176649

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Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2358-1 advisory.

- A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host. (CVE-2021-3929)

- 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)

- A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service. (CVE-2022-0216)

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: High

ID: 176649

File Name: suse_SU-2023-2358-1.nasl

Version: 1.3

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/3/2023

Updated: 9/28/2023

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2021-4207

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:qemu-tools, p-cpe:/a:novell:suse_linux:qemu-guest-agent, p-cpe:/a:novell:suse_linux:qemu-sgabios, p-cpe:/a:novell:suse_linux:qemu-x86, p-cpe:/a:novell:suse_linux:qemu, p-cpe:/a:novell:suse_linux:qemu-ipxe, p-cpe:/a:novell:suse_linux:qemu-kvm, p-cpe:/a:novell:suse_linux:qemu-lang, p-cpe:/a:novell:suse_linux:qemu-block-curl, p-cpe:/a:novell:suse_linux:qemu-block-rbd, p-cpe:/a:novell:suse_linux:qemu-seabios, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:qemu-block-ssh, p-cpe:/a:novell:suse_linux:qemu-vgabios

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: 6/2/2023

Vulnerability Publication Date: 4/29/2022

Reference Information

CVE: CVE-2021-3929, CVE-2021-4206, CVE-2021-4207, CVE-2022-0216

IAVB: 2022-B-0057-S

SuSE: SUSE-SU-2023:2358-1

Detections

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