RHEL 9 : lldpd (RHSA-2024:9158)

critical Nessus Plugin ID 210792

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Synopsis

The remote Red Hat host is missing one or more security updates for lldpd.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:9158 advisory.

LLDP is an industry standard protocol designed to supplant proprietary Link-Layer protocols such as EDP or CDP. The goal of LLDP is to provide an inter-vendor compatible mechanism to deliver Link-Layer notifications to adjacent network devices.

Security Fix(es):

* lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827)

* lldpd: out-of-bounds read when decoding SONMP packets (CVE-2021-43612)

* lldpd: CDP PDU Packet cdp.c out-of-bounds read (CVE-2023-41910)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 RHEL lldpd package based on the guidance in RHSA-2024:9158.

Plugin Details

Severity: Critical

ID: 210792

File Name: redhat-RHSA-2024-9158.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/12/2024

Updated: 11/12/2024

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: 5.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-27827

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS Score Source: CVE-2023-41910

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:lldpd, p-cpe:/a:redhat:enterprise_linux:lldpd-devel, cpe:/o:redhat:enterprise_linux:9

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2024

Vulnerability Publication Date: 3/18/2021

Reference Information

CVE: CVE-2020-27827, CVE-2021-43612, CVE-2023-41910

CWE: 125, 400

RHSA: 2024:9158

Detections

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