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CVE-2016-9962

Published: 31 January 2017

RunC allowed additional container processes via 'runc exec' to be ptraced by the pid 1 of the container. This allows the main processes of the container, if running as root, to gain access to file-descriptors of these new processes during the initialization and can lead to container escapes or modification of runC state before the process is fully placed inside the container.

Priority

Medium

Cvss 3 Severity Score

6.4

Score breakdown

Status

Package Release Status
runc
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream
Released (0.1.1)
xenial Not vulnerable
(1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1)
yakkety Ignored
(end of life)
zesty
Released (1.0.0~rc2+docker1.12.6-0ubuntu1)
artful
Released (1.0.0~rc2+docker1.13.1-0ubuntu1)
bionic
Released (1.0.0~rc2+docker1.13.1-0ubuntu1)
cosmic
Released (1.0.0~rc2+docker1.13.1-0ubuntu1)
disco
Released (1.0.0~rc2+docker1.13.1-0ubuntu1)
precise Does not exist

Patches:
upstream: https://github.com/opencontainers/runc/commit/50a19c6ff828c58e5dab13830bd3dacde268afe5
docker.io
Launchpad, Ubuntu, Debian
precise Does not exist

artful
Released (1.13.1-0ubuntu4)
bionic
Released (1.13.1-0ubuntu4)
cosmic
Released (1.13.1-0ubuntu4)
disco
Released (1.13.1-0ubuntu4)
trusty Does not exist
(trusty was deferred)
upstream
Released (1.13.1)
xenial
Released (1.13.1-0ubuntu1~16.04.1)
yakkety Ignored
(end of life)
zesty
Released (1.13.1-0ubuntu1~17.04.1)

Severity score breakdown

Parameter Value
Base score 6.4
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H