Description (CNA)
The getblock RPC method in zebra-rpc before 11.0.0, used by the Zcash Foundation's Zebra node, panics on verbosity 2 for a side-chain block because the block's -1 confirmations sentinel is converted to u32 with .expect(), aborting the process. Remote unauthenticated attackers, directly or through lightwalletd, can repeat this call to keep the node in a crash loop.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| ZcashFoundation / zebra | affected 0 before 11.0.0; unaffected 11.0.0 |
CWE
CWE-617
References
- https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-x6v8-c2xp-928m
- https://www.vulncheck.com/advisories/zebra-before-11.0.0-denial-of-service-via-getblock-verbosity-2
ADP enrichment
No English description supplied.
No references supplied.