GLSA-201701-34 : runC: Privilege escalation

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201701-34
(runC: Privilege escalation)

A vulnerability was discovered in runC that allows 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.

Impact :

An attacker, who is able to successfully escape the container or modify
runC’s state before process initialization, could escalate privileges.

Workaround :

There is no known workaround at this time.

See also :

https://security.gentoo.org/glsa/201701-34

Solution :

All runC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-emulation/runc-1.0.0_rc2-r2'

Risk factor :

Medium / CVSS Base Score : 4.4
(CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 96475 ()

Bugtraq ID:

CVE ID: CVE-2016-9962

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