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.
2013-03-12T11:28:18.313
2025-04-11T00:51:21.963
Deferred
CVSSv2: 7.8 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | bitcoin | bitcoin-qt | 0.6.3 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.4 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.5 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.8 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.10 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.11 | Yes |
| Application | bitcoin | bitcoin_core | 0.3.12 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.0 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.1 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.1 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.2 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.3 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.4 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.4 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.5 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.6 | Yes |
| Application | bitcoin | bitcoin_core | 0.4.7 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.0 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.3 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.3.1 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.4 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.5 | Yes |
| Application | bitcoin | bitcoin_core | 0.5.6 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.1 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.2 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.3 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.4 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.5 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.6 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.7 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.0.8 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.1 | Yes |
| Application | bitcoin | bitcoin_core | 0.6.2 | Yes |
| Application | bitcoin | bitcoind | 0.6.3 | Yes |
| Application | bitcoin | wxbitcoin | 0.3.4 | Yes |
| Application | bitcoin | wxbitcoin | 0.3.5 | Yes |
| Application | bitcoin | wxbitcoin | 0.3.8 | Yes |
| Application | bitcoin | wxbitcoin | 0.3.10 | Yes |
| Application | bitcoin | wxbitcoin | 0.3.11 | Yes |
| Application | bitcoin | wxbitcoin | 0.4.0 | Yes |
| Application | bitcoin | wxbitcoin | 0.4.1 | Yes |
| Application | bitcoin | wxbitcoin | 0.4.1 | Yes |
| Application | bitcoin | wxbitcoin | 0.5.0 | Yes |