Executive Summary

Summary
Title runc security and bug fix update
Informations
Name RHSA-2017:0127 First vendor Publication 2017-01-17
Vendor RedHat Last vendor Modification 2017-01-17
Severity (Vendor) N/A Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for runc is now available for Red Hat Enterprise Linux 7 Extras.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux 7 Extras - x86_64

3. Description:

The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.

Security Fix(es):

* The runc component used by `docker exec` feature of docker allowed additional container processes via to be ptraced by the pid 1 of the container. This allows the main processes of the container, if running as root, to gain low-level access to these new processes during initialization. An attacker can, depending on the nature of the incoming process, leverage this to elevate access to the host. This ranges from accessing host content through the file descriptors of the incoming process to, potentially, a complete container escape by leveraging memory access or syscall interception. (CVE-2016-9962)

Red Hat would like to thank the Docker project for reporting this issue. Upstream acknowledges Aleksa Sarai (SUSE) and Tonis Tiigi (Docker) as the original reporters.

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1409531 - CVE-2016-9962 docker: insecure opening of file-descriptor allows privilege escalation

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2017-0127.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 180

Nessus® Vulnerability Scanner

Date Description
2017-08-01 Name : The remote Fedora host is missing a security update.
File : fedora_2017-20cdb2063a.nasl - Type : ACT_GATHER_INFO
2017-02-01 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-181.nasl - Type : ACT_GATHER_INFO
2017-01-23 Name : The remote Fedora host is missing a security update.
File : fedora_2017-c2c2d1be16.nasl - Type : ACT_GATHER_INFO
2017-01-19 Name : The remote Fedora host is missing a security update.
File : fedora_2017-0200646669.nasl - Type : ACT_GATHER_INFO
2017-01-18 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-3511.nasl - Type : ACT_GATHER_INFO
2017-01-18 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0116.nasl - Type : ACT_GATHER_INFO
2017-01-18 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0123.nasl - Type : ACT_GATHER_INFO
2017-01-18 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2017-0127.nasl - Type : ACT_GATHER_INFO
2017-01-16 Name : The remote Fedora host is missing a security update.
File : fedora_2017-fcd02e2c2d.nasl - Type : ACT_GATHER_INFO
2017-01-13 Name : The remote Fedora host is missing a security update.
File : fedora_2017-dbc2b618eb.nasl - Type : ACT_GATHER_INFO
2017-01-13 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201701-34.nasl - Type : ACT_GATHER_INFO
2017-01-11 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2017-783.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
2
Date Informations
2018-01-05 09:26:25
  • Multiple Updates
2017-01-19 13:25:05
  • Multiple Updates
2017-01-18 13:23:59
  • First insertion