Zebra before 6.3.0 Block Sync Denial of Service via Coinbase scriptSig Rewrite
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZcashFoundation | zebra | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zcashfoundation | Zebra |
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| Zfnd | Zebra |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.178% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zcashfoundation
Zcashfoundation zebra |
|
| Vendors & Products |
Zcashfoundation
Zcashfoundation zebra |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The block sync download path in Zebra (zebrad) before 6.3.0 reads a block's height from its unvalidated coinbase scriptSig and drops blocks that appear too far behind the tip before consensus validation, without penalizing the supplying peer. Because V5 transaction IDs exclude the scriptSig, a malicious peer can repeatedly serve a canonical block whose coinbase claims height 1 while keeping the requested hash, delaying the node's discovery of the newest block. | |
| Title | Zebra before 6.3.0 Block Sync Denial of Service via Coinbase scriptSig Rewrite | |
| First Time appeared |
Zfnd
Zfnd zebra |
|
| Weaknesses | CWE-345 | |
| CPEs | cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zfnd
Zfnd zebra |
|
| References |
| |
| Metrics |
cvssV3_1
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