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VuXML IDDescription
e9aa0e4c-ea8b-11e8-a5b7-00e04c1ea73dpowerdns-recursor -- Multiple vulnerabilities

powerdns Team reports:

CVE-2018-10851: An issue has been found in PowerDNS Recursor allowing a malicious authoritative server to cause a memory leak by sending specially crafted records. The issue is due to the fact that some memory is allocated before the parsing and is not always properly released if the record is malformed. When the PowerDNS Recursor is run inside a supervisor like supervisord or systemd, an out-of-memory crash will lead to an automatic restart, limiting the impact to a somewhat degraded service.

CVE-2018-14626: An issue has been found in PowerDNS Recursor 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 clients performing DNSSEC validation by themselves might consider the answer to be bogus until it expires from the packet cache, leading to a denial of service.

CVE-2018-14644: An issue has been found in PowerDNS Recursor where a remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.


Discovery 2018-11-06
Entry 2018-11-17
Modified 2018-11-19
powerdns-recursor
< 4.1.7

powerdns-recursor40
< 4.0.9

https://doc.powerdns.com/recursor/changelog/4.1.html
CVE-2018-10851
CVE-2018-14626
CVE-2018-14644
40d92cc5-1e2b-11e9-bef6-6805ca2fa271powerdns-recursor -- multiple vulnerabilities

PowerDNS Team reports:

CVE-2019-3806: An issue has been found in PowerDNS Recursor where Lua hooks are not properly applied to queries received over TCP in some specific combination of settings, possibly bypassing security policies enforced using Lua. When the recursor is configured to run with more than one thread (threads=X) and to do the distribution of incoming queries to the worker threads itself (pdns-distributes-queries=yes), the Lua script is not properly loaded in the thread handling incoming TCP queries, causing the Lua hooks to not be properly applied.

CVE-2019-3807: An issue has been found in PowerDNS Recursor where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.


Discovery 2019-01-21
Entry 2019-01-22
powerdns-recursor
< 4.1.9

https://doc.powerdns.com/recursor/changelog/4.1.html
CVE-2019-3806
CVE-2019-3807
f6d6308a-f2ec-11e8-b005-6805ca2fa271powerdns-recursor -- Crafted query can cause a denial of service

powerdns Team reports:

CVE-2018-16855: An issue has been found in PowerDNS Recursor where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash. When the PowerDNS Recursor is run inside a supervisor like supervisord or systemd, a crash will lead to an automatic restart, limiting the impact to a somewhat degraded service.


Discovery 2018-11-26
Entry 2018-12-09
powerdns-recursor
< 4.1.8

https://doc.powerdns.com/recursor/changelog/4.1.html
CVE-2018-16855
5418b360-29cc-11ed-a6d4-6805ca2fa271powerdns-recursor -- denial of service

PowerDNS Team reports:

PowerDNS Security Advisory 2022-02: incomplete exception handling related to protobuf message generation.


Discovery 2022-08-23
Entry 2022-09-01
powerdns-recursor
< 4.7.2

< 4.6.3

< 4.5.10

CVE-2022-37428
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
5418b360-29cc-11ed-a6d4-6805ca2fa271powerdns-recursor -- denial of service

PowerDNS Team reports:

PowerDNS Security Advisory 2022-02: incomplete exception handling related to protobuf message generation.


Discovery 2022-08-23
Entry 2022-09-01
powerdns-recursor
< 4.7.2

< 4.6.3

< 4.5.10

CVE-2022-37428
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
5418b360-29cc-11ed-a6d4-6805ca2fa271powerdns-recursor -- denial of service

PowerDNS Team reports:

PowerDNS Security Advisory 2022-02: incomplete exception handling related to protobuf message generation.


Discovery 2022-08-23
Entry 2022-09-01
powerdns-recursor
< 4.7.2

< 4.6.3

< 4.5.10

CVE-2022-37428
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
24a82876-002e-11e8-9a95-0cc47a02c232powerdns-recursor -- insufficient validation of DNSSEC signatures

PowerDNS Security Advisory reports:

An issue has been found in the DNSSEC validation component of PowerDNS Recursor, allowing an ancestor delegation NSEC or NSEC3 record to be used to wrongfully prove the non-existence of a RR below the owner name of that record. This would allow an attacker in position of man-in-the-middle to send a NXDOMAIN answer for a name that does exist.


Discovery 2018-01-22
Entry 2018-01-23
powerdns-recursor
< 4.1.1

CVE-2018-1000003
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-01.html