Bug 1840189 (CVE-2020-12244) - CVE-2020-12244 pdns-recursor: incorrect handling of records in the answer section of a NXDOMAIN response lacking an SOA allows an attacker to bypass DNSSEC validation
Summary: CVE-2020-12244 pdns-recursor: incorrect handling of records in the answer sec...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-12244
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: 1840192 1840193
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-05-26 14:21 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-05-26 15:15 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2020-05-26 15:15:46 UTC
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Description Guilherme de Almeida Suckevicz 2020-05-26 14:21:26 UTC
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.

Reference:
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html

Comment 1 Guilherme de Almeida Suckevicz 2020-05-26 14:26:52 UTC
Created pdns-recursor tracking bugs for this issue:

Affects: epel-all [bug 1840192]
Affects: fedora-all [bug 1840193]

Comment 2 Product Security DevOps Team 2020-05-26 15:15:46 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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