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CVE Record

CVE-2019-1020014: docker-credential-helpers before 0.6.3 has a double free in the List functions.

docker-credential-helpers before 0.6.3 has a double free in the List functions.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Docker's credential helper had a memory management bug before version 0.6.3. The available sources identify a double free in List functions, but do not provide severity scoring or confirmed impact. Organizations should update affected packages, especially where Docker credentials are used on developer machines or CI systems.

Executive priority

Handle through security maintenance, with higher priority for CI/CD hosts and shared developer systems that use Docker credentials. Business urgency is uncertain because the sources do not document severity, exploitation, or full impact.

Technical view

CVE-2019-1020014 affects Docker docker-credential-helpers before 0.6.3. The flaw is a double free in the List functions. The bundle provides no CVSS, CWE, exploitability analysis, privilege requirement, or detailed impact beyond the vulnerable component and fixed version reference.

Likely exposure

Exposure is most likely on systems running docker-credential-helpers earlier than 0.6.3, including distribution-packaged versions referenced by Ubuntu and Fedora advisories. The sources do not identify a remote service exposure or specific attack path.

Exploitation context

The CVE is not marked as CISA KEV, and the provided sources do not claim active exploitation. Public evidence in the bundle is limited to the CVE description, upstream fix reference, release tag, and distro advisories.

Researcher notes

Focus review on the upstream fixing commit and version 0.6.3 release. Validate whether local packaging backports the fix even when displayed versions differ. Do not assume remote exploitability from the provided evidence.

Mitigation direction

  • Upgrade docker-credential-helpers to version 0.6.3 or later.
  • Apply vendor-provided Ubuntu or Fedora package updates where applicable.
  • Check Docker-related CI images and developer workstations for bundled vulnerable helper versions.
  • Monitor upstream Docker and Linux distribution advisories for additional guidance.

Validation and detection

  • Inventory installed docker-credential-helpers versions across endpoints, build agents, and base images.
  • Confirm no deployed version is earlier than 0.6.3.
  • Review package manager advisory status for Ubuntu and Fedora systems.
  • Verify Docker credential workflows still function after updating the helper package.
Prepared
Confidence
medium
Sources
7

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2019-1020014 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
6Source 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
Dockerdocker-credential-helpers< 0.6.3Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.