Vulnerabilities (CVE)

Filtered by vendor Powerdns Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-27227 2 Fedoraproject, Powerdns 3 Fedora, Authoritative Server, Recursor 2022-07-30 4.3 MEDIUM 7.5 HIGH
In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.
CVE-2020-25829 2 Opensuse, Powerdns 3 Backports Sle, Leap, Recursor 2022-06-15 5.0 MEDIUM 7.5 HIGH
An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
CVE-2020-12244 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2022-04-26 5.0 MEDIUM 7.5 HIGH
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.
CVE-2020-10995 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2022-04-26 5.0 MEDIUM 7.5 HIGH
PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue.
CVE-2021-36754 1 Powerdns 1 Authoritative Server 2021-08-07 5.0 MEDIUM 7.5 HIGH
PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exception.
CVE-2019-3806 1 Powerdns 1 Recursor 2020-10-19 6.8 MEDIUM 8.1 HIGH
An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 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.
CVE-2020-24697 1 Powerdns 1 Authoritative 2020-10-08 4.3 MEDIUM 7.5 HIGH
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can cause a denial of service by sending crafted queries with a GSS-TSIG signature.
CVE-2020-24696 1 Powerdns 1 Authoritative 2020-10-08 5.1 MEDIUM 8.1 HIGH
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can trigger a race condition leading to a crash, or possibly arbitrary code execution, by sending crafted queries with a GSS-TSIG signature.
CVE-2019-10162 2 Opensuse, Powerdns 2 Leap, Authoritative 2020-10-02 5.0 MEDIUM 7.5 HIGH
A vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.10, 4.0.8 allowing an authorized user to cause the server to exit by inserting a crafted record in a MASTER type zone under their control. The issue is due to the fact that the Authoritative Server will exit when it runs into a parsing error while looking up the NS/A/AAAA records it is about to use for an outgoing notify.
CVE-2018-1046 1 Powerdns 1 Pdns 2020-08-31 9.3 HIGH 7.8 HIGH
pdns before version 4.1.2 is vulnerable to a buffer overflow in dnsreplay. In the dnsreplay tool provided with PowerDNS Authoritative, replaying a specially crafted PCAP file can trigger a stack-based buffer overflow, leading to a crash and potentially arbitrary code execution. This buffer overflow only occurs when the -ecs-stamp option of dnsreplay is used.
CVE-2020-10030 1 Powerdns 1 Recursor 2020-06-14 6.5 MEDIUM 8.8 HIGH
An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname is larger than the supplied buffer. (Linux systems are not affected because the buffer is always large enough. OpenBSD systems are not affected because the returned hostname always has '\0' termination.) Under some conditions, this issue can lead to the writing of one '\0' byte out-of-bounds on the stack, causing a denial of service or possibly arbitrary code execution.
CVE-2015-5230 2 Debian, Powerdns 2 Debian Linux, Authoritative 2020-01-17 5.0 MEDIUM 7.5 HIGH
The DNS packet parsing/generation code in PowerDNS (aka pdns) Authoritative Server 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via crafted query packets.
CVE-2018-16855 1 Powerdns 1 Recursor 2019-10-09 5.0 MEDIUM 7.5 HIGH
An issue has been found in PowerDNS Recursor before version 4.1.8 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.
CVE-2018-14626 1 Powerdns 2 Authoritative, Recursor 2019-10-09 5.0 MEDIUM 7.5 HIGH
PowerDNS Authoritative Server 4.1.0 up to 4.1.4 inclusive and PowerDNS Recursor 4.0.0 up to 4.1.4 inclusive are vulnerable to a packet cache pollution via crafted query that can lead to denial of service.
CVE-2018-10851 1 Powerdns 2 Authoritative, Recursor 2019-10-09 5.0 MEDIUM 7.5 HIGH
PowerDNS Authoritative Server 3.3.0 up to 4.1.4 excluding 4.1.5 and 4.0.6, and PowerDNS Recursor 3.2 up to 4.1.4 excluding 4.1.5 and 4.0.9, are vulnerable to a memory leak while parsing malformed records that can lead to remote denial of service.
CVE-2017-7557 1 Powerdns 1 Dnsdist 2019-10-09 6.8 MEDIUM 8.8 HIGH
dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack.
CVE-2017-15091 1 Powerdns 1 Authoritative 2019-10-09 5.5 MEDIUM 7.1 HIGH
An issue has been found in the API component of PowerDNS Authoritative 4.x up to and including 4.0.4 and 3.x up to and including 3.4.11, where some operations that have an impact on the state of the server are still allowed even though the API has been configured as read-only via the api-readonly keyword. This missing check allows an attacker with valid API credentials to flush the cache, trigger a zone transfer or send a NOTIFY.
CVE-2017-15120 2 Debian, Powerdns 2 Debian Linux, Recursor 2019-10-09 5.0 MEDIUM 7.5 HIGH
An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service.
CVE-2016-7072 2 Debian, Powerdns 2 Debian Linux, Authoritative 2019-10-09 5.0 MEDIUM 7.5 HIGH
An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
CVE-2016-7069 1 Powerdns 1 Dnsdist 2019-10-09 5.0 MEDIUM 7.5 HIGH
An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.
CVE-2016-7068 2 Debian, Powerdns 3 Debian Linux, Authoritative, Recursor 2019-10-09 7.8 HIGH 7.5 HIGH
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
CVE-2019-3871 2 Fedoraproject, Powerdns 2 Fedora, Authoritative Server 2019-04-05 6.5 MEDIUM 8.8 HIGH
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response
CVE-2016-5426 1 Powerdns 1 Authoritative 2017-08-13 5.0 MEDIUM 7.5 HIGH
PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.
CVE-2016-5427 1 Powerdns 1 Authoritative 2017-08-13 5.0 MEDIUM 7.5 HIGH
PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.