CVE-2012-4684

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-03-12 · updated 2026-06-16
Weakness: CWE-399

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.

Affected products

Bitcoin-Qt: 0.6.3
Bitcoin Core: 0.3.4, 0.3.5, 0.3.8, 0.3.10, 0.3.11, 0.3.12 (+26)
Bitcoind: 0.6.3
Bitcoin Wxbitcoin: 0.3.4, 0.3.5, 0.3.8, 0.3.10, 0.3.11, 0.4.0 (+3)

References

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
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

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