CVE-2012-4684 Information

Description

The alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representations of the same signature data but relies on a hash of this signature which allows remote attackers to cause a denial of service (resource consumption) via a valid modified signature for a circulating alert.

Reference

https://bitcointalk.org/index.php?topic=148109.0 https://bitcointalk.org/index.php?topic=8392.0 https://en.bitcoin.it/wiki/CVE-2012-4684 https://en.bitcoin.it/wiki/CVEs