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GHSA-wjxw-gh3m-7pm5
No affected components available
Impact
A vulnerable node, if configured to use high verbosity logging, can be made to crash when handling specially crafted p2p messages sent from an attacker node.
Patches
The following PR addresses the problem: https://github.com/ethereum/go-ethereum/pull/24507
Workarounds
Aside from applying the PR linked above, setting loglevel to default level (INFO) makes the node not vulnerable to this attack.
Credits
This bug was reported by nrv via bounty@ethereum.org, who has gracefully requested that the bounty rewards be donated to Médecins sans frontières.
For more information
If you have any questions or comments about this advisory:
- Open an issue in go-ethereum
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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