UBUNTU-CVE-2023-28450
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UBUNTU-CVE-2023-28450
Published: 15 Mar 2023Last Modified: 4 Feb 2026
Upstream:
Aliases:
Summary:
Details: An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
References: https://ubuntu.com/security/CVE-2023-28450, https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=blob;f=CHANGELOG, https://capec.mitre.org/data/definitions/495.html, https://thekelleys.org.uk/dnsmasq/doc.html, https://ubuntu.com/security/notices/USN-6034-1, https://ubuntu.com/security/notices/USN-6657-1, https://www.cve.org/CVERecord?id=CVE-2023-28450, https://ubuntu.com/security/notices/USN-6657-2
Affected packages
Package
Name: dnsmasq
Purl: pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=trusty/esm
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -2.68-1ubuntu0.2+esm2
Affected versions
2.66-4ubuntu1
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
