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RHEL 7 : policycoreutils (RHSA-2017:0535)

high Nessus Plugin ID 97768

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for policycoreutils is now available for Red Hat Enterprise Linux 7.2 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.

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)

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2017:0535

https://access.redhat.com/security/cve/cve-2016-7545

Plugin Details

Severity: High

ID: 97768

File Name: redhat-RHSA-2017-0535.nasl

Version: 3.8

Type: local

Agent: unix

Published: 3/16/2017

Updated: 10/24/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:policycoreutils, p-cpe:/a:redhat:enterprise_linux:policycoreutils-python, p-cpe:/a:redhat:enterprise_linux:policycoreutils-sandbox, p-cpe:/a:redhat:enterprise_linux:policycoreutils-restorecond, p-cpe:/a:redhat:enterprise_linux:policycoreutils-debuginfo, p-cpe:/a:redhat:enterprise_linux:policycoreutils-devel, cpe:/o:redhat:enterprise_linux:7.2, p-cpe:/a:redhat:enterprise_linux:policycoreutils-newrole, p-cpe:/a:redhat:enterprise_linux:policycoreutils-gui

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 3/15/2017

Vulnerability Publication Date: 1/19/2017

Reference Information

CVE: CVE-2016-7545

RHSA: 2017:0535