CVE-2021-36754

HIGH 7.5CVE-2021-36754 · Published 30/07/2021 · updated 17/06/2026

Package	Affected versions	Patched versions
authoritative server powerdns	`≥ 4.5.0, < 4.5.1`	`4.5.1`

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.

References

openwall.com/lists/oss-security/2021/07/26/2 · Mailing List
doc.powerdns.com/authoritative/security-advisories/index.html · Vendor Advisory
doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html · Vendor Advisory

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