CVE-2024-34478

Description

btcd before 0.24.0 does not correctly implement the consensus rules outlined in BIP 68 and BIP 112, making it susceptible to consensus failures. Specifically, it uses the transaction version as a signed integer when it is supposed to be treated as unsigned. There can be a chain split and loss of funds.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.20%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://delvingbitcoin.org/t/disclosure-btcd-consensus-bugs-due-to-usage-of-signed-transaction-version/455
https://github.com/btcsuite/btcd/blob/e4c88c3a3ecb1813529bf3dddc7a865bd418a6b8/blockchain/chain.go#L383C1-L392C3
https://github.com/btcsuite/btcd/blob/e4c88c3a3ecb1813529bf3dddc7a865bd418a6b8/txscript/opcode.go#L1172C1-L1178C3

Frequently Asked Questions

What is the severity of CVE-2024-34478?
CVE-2024-34478 has been scored as a high severity vulnerability.
How to fix CVE-2024-34478?
To fix CVE-2024-34478, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-34478 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-34478 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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