Executive Summary

Summary
Title policycoreutils security update
Informations
Name RHSA-2017:0536 First vendor Publication 2017-03-15
Vendor RedHat Last vendor Modification 2017-03-15
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:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for policycoreutils is now available for Red Hat Enterprise Linux 7.1 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. 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 ComputeNode EUS (v. 7.1) - x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64

3. Description:

The policycoreutils packages contain the core policy utilities required to manage a SELinux environment.

Security Fix(es):

* It was found that the sandbox tool provided in policycoreutils was vulnerable to a TIOCSTI ioctl attack. A specially crafted program executed via the sandbox command could use this flaw to execute arbitrary commands in the context of the parent shell, escaping the sandbox. (CVE-2016-7545)

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/):

1378577 - CVE-2016-7545 policycoreutils: SELinux sandbox escape via TIOCSTI ioctl

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2017-0536.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-284 Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 2
Os 2
Os 2
Os 1
Os 2

Nessus® Vulnerability Scanner

Date Description
2017-05-01 Name : The remote EulerOS host is missing a security update.
File : EulerOS_SA-2016-1083.nasl - Type : ACT_GATHER_INFO
2017-03-16 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0535.nasl - Type : ACT_GATHER_INFO
2017-03-16 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0536.nasl - Type : ACT_GATHER_INFO
2017-02-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0338-1.nasl - Type : ACT_GATHER_INFO
2017-02-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0339-1.nasl - Type : ACT_GATHER_INFO
2017-02-01 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0340-1.nasl - Type : ACT_GATHER_INFO
2016-11-22 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20161114_policycoreutils_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2016-11-21 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2016-2702.nasl - Type : ACT_GATHER_INFO
2016-11-16 Name : The remote OracleVM host is missing a security update.
File : oraclevm_OVMSA-2016-0157.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2016-b7e8e980ef.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2016-2702.nasl - Type : ACT_GATHER_INFO
2016-11-15 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2016-2702.nasl - Type : ACT_GATHER_INFO
2016-11-11 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2016-765.nasl - Type : ACT_GATHER_INFO
2016-09-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-638.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2017-03-18 13:24:38
  • Multiple Updates
2017-03-15 17:23:24
  • First insertion