Security Alert – Geth suffers from a very low DoS attack vector. Update immediately.

Configurations affected: every Go client version

What could happen: very low

Severity: High

Details: A bug in Geth (and potentially other clients) can suffer from DoS attacks, allowing a remote attacker to provide a valid, lightweight chain, delaying the synchronization process almost indefinitely. More information, including reports submitted through the bug bounty program, will be provided at a later date.

Impact on expected chain reorganization depth: doesn’t exist

Suggested workaround: doesn’t exist

Improvement measures taken by Ethereum: Hotfix provided as below:

If you use Mist: Download the updated binaries from: release page

If you’re using a PPA: sudo apt-get update Then sudo apt-get upgrade

If you use brewing: Brewing Updates Then Reinstall Brewing Ethereum

If you’re using Windows binaries: Download the updated binaries from: release page

If building from source: child pull next make a geth (Please use the master branch. 94ad694a26ca3f7776ec8240802596755e5d5c0a)