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rockyRockylinux Product ErrataRLSA-2024:1335
HistoryMar 27, 2024 - 4:34 a.m.

dnsmasq security update

2024-03-2704:34:32
Rockylinux Product Errata
errata.rockylinux.org
22
dnsmasq security update
rocky linux 8
cve-2023-50387
cve-2023-50868
dns forwarder
dhcp server
cvss base score
cpu consumption
dnssec validator
nsec3 closest encloser proof

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

7.2 High

AI Score

Confidence

Low

0.05 Low

EPSS

Percentile

92.9%

An update is available for dnsmasq.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
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.

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

7.2 High

AI Score

Confidence

Low

0.05 Low

EPSS

Percentile

92.9%