Description (CNA)
NLnet Labs Unbound up to and including version 1.26.1 limits compression-pointer traversal for each individual domain-name operation but has no aggregate inbound decompression-work budget. Many chained compression pointers in a message results in a lot of CPU usage following them. A malicious actor with recursive-query access and control of an ordinarily delegated authority that serves specially crafted replies can exploit the vulnerability and degrade Unbound's general performance.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| NLnet Labs / Unbound | affected 0 before 1.26.2 |
CWE
CWE-770