Bug 2120864 (CVE-2022-37428) - CVE-2022-37428 pdns-recursor: DoS when protobuf logging is enabled
Summary: CVE-2022-37428 pdns-recursor: DoS when protobuf logging is enabled
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-37428
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2120865 2120866
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-08-23 22:33 UTC by Anten Skrabec
Modified: 2022-09-02 17:55 UTC (History)
2 users (show)

Fixed In Version: pdns-recursor 4.5.10, pdns-recursor 4.6.3, pdns-recursor 4.7.2
Clone Of:
Environment:
Last Closed: 2022-09-02 17:55:17 UTC
Embargoed:

Attachments (Terms of Use)

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.
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