CVE-2022-37428
Published: 23 August 2022
PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pdns-recursor Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Not vulnerable
(4.7.2-1)
|
|
| mantic |
Not vulnerable
(4.7.2-1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(4.7.2-1)
|
|
| xenial |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- https://www.openwall.com/lists/oss-security/2022/08/23/1
- https://downloads.powerdns.com/patches/2022-02/
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
- https://docs.powerdns.com/recursor/lua-config/protobuf.html
- https://www.cve.org/CVERecord?id=CVE-2022-37428
- NVD
- Launchpad
- Debian