High severity · published Jul 30, 2021
CVE-2021-36754
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
7.5
CVSS
64.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)64.9% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Authoritative Server · Powerdns
4.5.0 before 4.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36754
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36754
Mailing List
http://www.openwall.com/lists/oss-security/2021/07/26/2
Vendor Advisory
https://doc.powerdns.com/authoritative/security-advisories/index.html
Vendor Advisory
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html
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