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.
The 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.
| Link | Tags |
|---|---|
| https://doc.powerdns.com/authoritative/security-advisories/index.html | vendor advisory |
| http://www.openwall.com/lists/oss-security/2021/07/26/2 | third party advisory mailing list |
| https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2021-01.html | vendor advisory |