CVE-2011-5056: n/a vulnerability

CVE-2011-5056: The authoritative server in MaraDNS through 2.0.04 computes hash values for DNS data without restricting th...

The authoritative server in MaraDNS through 2.0.04 computes hash values for DNS data without restricting the ability to trigger hash collisions predictably, which might allow local users to cause a denial of service (CPU consumption) via crafted records in zone files, a different vulnerability than CVE-2012-0024.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:23 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability affects MaraDNS authoritative DNS servers through 2.0.04. A user who can place crafted records into zone files may force expensive hash collisions and consume CPU, causing service degradation or denial of service. The public record does not show remote unauthenticated exploitation or active exploitation. Exposure is likely limited to deployments running MaraDNS through 2.0.04 where local users, automation, hosting tenants, or DNS management workflows can modify zone files. Treat as a targeted availability risk, not a broad internet worm scenario. Prioritize systems providing business-critical authoritative DNS, especially shared hosting or delegated DNS environments with multiple local writers. Mitigation focus: Identify MaraDNS authoritative servers and confirm versions.; Upgrade beyond 2.0.04 where vendor-supported guidance is available.; Restrict zone-file write access to trusted administrators and automation only..

Prepared: Jun 27, 2026, 17:28 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 8, 2012, 00:00 UTC (UTC+00:00)

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

2Source links

CVSS and timeline data

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

Source materials

CVE List V5 sourceCVE List V5
maradns-server-dos(72258)CVE reference · vdb-entry, x_refsource_XF

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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