CVE-2015-3629

Publication date 18 May 2015

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

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.

Status

Package Ubuntu Release Status
docker.io 17.04 zesty
Not affected
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 1.6.2~dfsg1-1ubuntu4
15.10 wily Ignored end of life
15.04 vivid Ignored end of life
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 1.6.2~dfsg1-1ubuntu4~14.04.1
12.04 LTS precise Not in release

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Other references