Bug 1649028 (CVE-2018-14626) - CVE-2018-14626 pdns: Packet cache pollution via crafted query
Summary: CVE-2018-14626 pdns: Packet cache pollution via crafted query
Status: NEW
Alias: CVE-2018-14626
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
(Show other bugs)
Version: unspecified
Hardware: All Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
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URL:
Whiteboard: impact=moderate,public=20181106,repor...
Keywords: Security
Depends On: 1649029 1649030
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-11-12 18:27 UTC by Pedro Sampaio
Modified: 2018-11-12 18:48 UTC (History)
3 users (show)

Fixed In Version: pdns-recursor 4.1.5, pdns-recursor 4.0.9, pdns 4.1.5
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RHEL 7.3 requirements from Atomic Host:
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Description Pedro Sampaio 2018-11-12 18:27:20 UTC
An issue has been found in PowerDNS Authoritative Server allowing a
remote user to craft a DNS query that will cause an answer without DNSSEC
records to be inserted into the packet cache and be returned to clients
asking for DNSSEC records, thus hiding the presence of DNSSEC signatures
for a specific qname and qtype.

For a DNSSEC-signed domain, this means that DNSSEC validating clients
will consider the answer to be bogus until it expires from the packet
cache, leading to a denial of service.

References:

https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-06.html
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2018-05.html

Comment 1 Pedro Sampaio 2018-11-12 18:28:05 UTC
Created pdns tracking bugs for this issue:

Affects: epel-all [bug 1649030]
Affects: fedora-all [bug 1649029]


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