CVE-2021-36754: powerdns authoritative_server

Vulnerability summary

CVE-2021-36754 is a high (CVSS 7.5) vulnerability in powerdns authoritative_server. EPSS estimates a 64.86% chance of exploitation in the next 30 days, higher than 99.2% of scored vulnerabilities.

Timeline

1. 27-07-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.