CVE-2023-28450
Published: 15 March 2023
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.
Priority
Status
Package | Release | Status |
---|---|---|
dnsmasq Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
focal |
Released
(2.80-1.1ubuntu1.7)
|
|
bionic |
Released
(2.79-1ubuntu0.7)
|
|
jammy |
Released
(2.86-1.1ubuntu0.3)
|
|
kinetic |
Released
(2.86-1.1ubuntu2.1)
|
|
trusty |
Released
(2.68-1ubuntu0.2+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
xenial |
Released
(2.79-1ubuntu0.16.04.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
lunar |
Needs triage
|
|
mantic |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=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/gitweb/?p=dnsmasq.git;a=commit;h=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5
- https://thekelleys.org.uk/dnsmasq/doc.html
- https://ubuntu.com/security/notices/USN-6034-1
- NVD
- Launchpad
- Debian