Vulnerability in Docker Libcontainer

CVE-2015-3629

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.

EPSS: 0.006 (45.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Permissions Required, x_refsource_CONFIRM)
  • cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
  • cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)

Frequently asked questions

What is CVE-2015-3629?
CVE-2015-3629 is a high-severity vulnerability in Docker Libcontainer, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2015-05-18.
How severe is CVE-2015-3629?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2015-3629 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.