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CVE Record

CVE-2012-4684: The alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representation...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw affects old bitcoind and Bitcoin-Qt releases before 0.7.0. A remote attacker could abuse the alert feature to make affected nodes consume resources, causing denial of service. It matters mainly for organizations still running very old Bitcoin node software.

Executive priority

Low-to-moderate unless legacy Bitcoin node software is still running. Treat confirmed pre-0.7.0 deployments as remediation items because the weakness is remotely reachable and availability-impacting.

Technical view

The alert mechanism accepted different character representations of the same signature data while relying on a hash of that signature. A valid modified signature for an existing circulating alert could trigger resource consumption in vulnerable bitcoind and Bitcoin-Qt versions before 0.7.0.

Likely exposure

Exposure appears limited to legacy bitcoind or Bitcoin-Qt nodes older than 0.7.0. Current systems are unlikely to be affected unless obsolete binaries remain in use.

Exploitation context

The provided sources describe remote denial of service potential. They do not show KEV listing, active exploitation, public weaponization status, or impact beyond resource consumption.

Researcher notes

Source data is sparse: no CVSS vector, CWE, affected CPEs, or detailed fix notes are provided. The reliable scope is bitcoind and Bitcoin-Qt before 0.7.0 and denial of service through alert signature representation handling.

Mitigation direction

  • Upgrade any remaining bitcoind or Bitcoin-Qt installations to 0.7.0 or later.
  • Retire unsupported legacy node binaries from production and lab networks.
  • Check vendor or project guidance before relying on compensating controls.
  • Restrict unnecessary network exposure for legacy nodes pending removal.

Validation and detection

  • Inventory systems for bitcoind or Bitcoin-Qt versions before 0.7.0.
  • Confirm no obsolete node binaries remain in service paths or startup configurations.
  • Review historical monitoring for unexplained resource exhaustion on legacy nodes.
  • Document upgrade or retirement evidence for affected assets.
Prepared
Confidence
medium
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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