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SUSE SLES12 Security Update : openvswitch (SUSE-SU-2022:3384-1)

high Nessus Plugin ID 165482

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:3384-1 advisory.

 - A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability. (CVE-2020-35498)

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 libopenvswitch-2_11-0 and / or openvswitch packages.

See Also

https://bugzilla.suse.com/1181742

https://www.suse.com/security/cve/CVE-2020-35498

http://www.nessus.org/u?68c677a2

Plugin Details

Severity: High

ID: 165482

File Name: suse_SU-2022-3384-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/27/2022

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: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2020-35498

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:libopenvswitch-2_11-0, p-cpe:/a:novell:suse_linux:openvswitch

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/26/2022

Vulnerability Publication Date: 2/11/2021

Reference Information

CVE: CVE-2020-35498

SuSE: SUSE-SU-2022:3384-1