Oracle Linux 7 : olcne (ELSA-2022-9492)

high Nessus Plugin ID 162334

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9492 advisory.

 - A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. (CVE-2021-3748)

 - A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0. (CVE-2022-26353)

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-2022-9492.html

Plugin Details

Severity: High

ID: 162334

File Name: oraclelinux_ELSA-2022-9492.nasl

Version: 1.3

Type: local

Agent: unix

Published: 6/16/2022

Updated: 1/6/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

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

CVSS Score Source: CVE-2021-3748

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:L/AC:H/PR:H/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:7:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-agent:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-api-server:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-nginx:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-utils:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcnectl:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-istio-chart:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-prometheus-chart:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-grafana-chart:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-olm-chart:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-gluster-chart:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:olcne-oci-csi-chart:*:*:*:*:*:*:*

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: 6/16/2022

Vulnerability Publication Date: 3/16/2022

Reference Information

CVE: CVE-2021-3748, CVE-2022-26353