Hickory DNS Recursive Resolver Denial of Service via Cached Empty Connection Pool
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| hickory-dns | hickory-dns | unaffected |
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| hickory-dns | hickory-dns | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
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| Hickory-dns | Hickory-dns |
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| Hickory-dns | Hickory-dns |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.343% probability within 30 days)
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Hickory-dns
Hickory-dns hickory-dns |
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| Vendors & Products |
Hickory-dns
Hickory-dns hickory-dns |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The recursive resolver in Hickory DNS (all versions of the hickory-recursor crate, and hickory-resolver 0.26.0 before 0.26.2) caches an empty connection pool when it follows a referral with no glue records and all queries for the name servers' IP addresses fail. An attacker able to spoof DNS responses can make these lookups fail, causing all subsequent queries for the affected zone to fail until the cache entry expires or is evicted. | |
| Title | Hickory DNS Recursive Resolver Denial of Service via Cached Empty Connection Pool | |
| Weaknesses | CWE-754 | |
| References |
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| Metrics |
cvssV3_1
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