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CBL Mariner 2.0 Security Update: openvswitch (CVE-2019-25076)

medium Nessus Plugin ID 173515

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of openvswitch installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2019-25076 advisory.

 - The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack. (CVE-2019-25076)

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://nvd.nist.gov/vuln/detail/CVE-2019-25076

Plugin Details

Severity: Medium

ID: 173515

File Name: mariner_openvswitch_CVE-2019-25076.nasl

Version: 1.1

Type: local

Published: 3/28/2023

Updated: 8/29/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2019-25076

CVSS v3

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:openvswitch, p-cpe:/a:microsoft:cbl-mariner:openvswitch-debuginfo, p-cpe:/a:microsoft:cbl-mariner:openvswitch-devel, p-cpe:/a:microsoft:cbl-mariner:openvswitch-doc, p-cpe:/a:microsoft:cbl-mariner:openvswitch-ipsec, p-cpe:/a:microsoft:cbl-mariner:openvswitch-selinux-policy, p-cpe:/a:microsoft:cbl-mariner:openvswitch-test, p-cpe:/a:microsoft:cbl-mariner:python3-openvswitch, x-cpe:/o:microsoft:cbl-mariner

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/13/2022

Vulnerability Publication Date: 9/8/2022

Reference Information

CVE: CVE-2019-25076