Bug 2120864 (CVE-2022-37428)

Summary: CVE-2022-37428 pdns-recursor: DoS when protobuf logging is enabled
Product: [Other] Security Response Reporter: Anten Skrabec <askrabec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ruben, sander
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: pdns-recursor 4.5.10, pdns-recursor 4.6.3, pdns-recursor 4.7.2 Doc Type: If docs needed, set a value
Doc Text:
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.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2022-09-02 17:55:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2120865, 2120866    
Bug Blocks:    

Description Anten Skrabec 2022-08-23 22:33:24 UTC 
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.

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
https://docs.powerdns.com/recursor/lua-config/protobuf.html
Comment 1 Anten Skrabec 2022-08-23 22:33:41 UTC 
Created pdns-recursor tracking bugs for this issue:

Affects: epel-all [bug 2120865]
Affects: fedora-all [bug 2120866]
Comment 2 Product Security DevOps Team 2022-09-02 17:55:15 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.