Bug 1413517 (CVE-2016-2120)

Summary: CVE-2016-2120 pdns: crafted zone record can cause a denial of service
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: lpardo, mstevens, ruben, sander
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: pdns 3.4.11, pdns 4.0.4, pdns-recursor 3.7.4, pdns-recursor 4.0.4 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 03:05:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1413518, 1413519, 1413520, 1413521    
Bug Blocks:    

Description Andrej Nemec 2017-01-16 09:31:18 UTC
An issue has been found in PowerDNS Authoritative Server allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.


References:
https://doc.powerdns.com/md/security/powerdns-advisory-2016-05/
http://seclists.org/oss-sec/2017/q1/97

Comment 1 Andrej Nemec 2017-01-16 09:32:35 UTC
Created pdns tracking bugs for this issue:

Affects: fedora-all [bug 1413518]
Affects: epel-all [bug 1413520]

Comment 2 Andrej Nemec 2017-01-16 09:32:40 UTC
Created pdns-recursor tracking bugs for this issue:

Affects: fedora-all [bug 1413519]
Affects: epel-all [bug 1413521]

Comment 3 Product Security DevOps Team 2019-06-08 03:05:34 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.