CVE-2022-37428
MEDIUM
6.5
CVSS Score
Published: August 23, 2022 at 04:33 PM UTC
Updated: June 17, 2026 at 04:55 AM UTC
2 products affected across 2 vendorsFedoraRecursor
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
4.5.0 ≤ v < 4.5.104.6.0 ≤ v < 4.6.34.7.0 ≤ v < 4.7.2
Affected range stops below 4.5.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.7.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://docs.powerdns.com/recursor/lua-config/protobuf.htmlx_refsource_MISCVendor Advisory
Source: [email protected]
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXSREJKTT6RNE3GXQENQ4R4HS37UNSPX/CVSS
6.5MEDIUMmitre
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-459
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