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CVE Record

CVE-2015-3629: Libcontainer 1.6.0, as used in Docker Engine, allows local users to escape containerization ("mount namespa...

Libcontainer 1.6.0, as used in Docker Engine, allows local users to escape containerization ("mount namespace breakout") and write to arbitrary file on the host system via a symlink attack in an image when respawning a container.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a container escape risk in old Docker Engine/libcontainer. A local user with control over a crafted image and a container respawn path could break expected isolation and write arbitrary files on the host. That makes it a host-integrity issue, not just a container issue. Exposure is most likely on legacy Docker Engine deployments using libcontainer 1.6.0, especially where untrusted local users can build, supply, or operate container images and trigger container respawn behavior. Prioritize remediation if any legacy Docker 1.6-era hosts remain in production. The business concern is host compromise from a container boundary failure, but urgency depends on whether old runtime versions and untrusted local access still exist. Mitigation focus: Inventory Docker Engine and libcontainer versions on legacy hosts.; Upgrade affected Docker/libcontainer installations using Docker or distribution vendor guidance.; Retire unsupported Docker 1.6-era systems where upgrades are not practical..

Prepared

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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ATT&CK lookup starting points

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File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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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-2015-3629 mapping review

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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
2Source links

CVSS and timeline data

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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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