Important: dnsmasq security update

2024-03-1400:00:00

Google

osv.dev

dnsmasq

security update

cpu consumption fix

dns server

dhcp server

cve-2023-50387

cve-2023-50868

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.1 High

AI Score

Confidence

Low

0.05 Low

EPSS

Percentile

92.9%

JSON

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

dnsmasq: bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)
dnsmasq: bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

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.