EulerOS 2.0 SP11 : dnsmasq (EulerOS-SA-2024-1784)

high Nessus Plugin ID 198302

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the dnsmasq package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the 'KeyTrap' issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.(CVE-2023-50387)

Tenable has extracted the preceding description block directly from the EulerOS dnsmasq security advisory.

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 dnsmasq packages.

See Also

http://www.nessus.org/u?78ad50fe

Plugin Details

Severity: High

ID: 198302

File Name: EulerOS_SA-2024-1784.nasl

Version: 1.1

Type: local

Published: 6/3/2024

Updated: 6/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

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-2023-50387

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: p-cpe:/a:huawei:euleros:dnsmasq, cpe:/o:huawei:euleros:2.0

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/31/2024

Vulnerability Publication Date: 2/13/2024

Reference Information

CVE: CVE-2023-50387