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CentOS 7 : polkit (CESA-2019:0230)

medium Nessus Plugin ID 122719

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

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

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 polkit packages provide a component for controlling system-wide privileges. This component provides a uniform and organized way for non-privileged processes to communicate with privileged ones.

Security Fix(es) :

* polkit: Temporary auth hijacking via PID reuse and non-atomic fork (CVE-2019-6133)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Jan Rybar (freedesktop.org) for reporting this issue. Upstream acknowledges Jann Horn (Google Project Zero) as the original reporter.

Solution

Update the affected polkit packages.

See Also

http://www.nessus.org/u?9517d1cd

http://www.nessus.org/u?5fca4ca6

Plugin Details

Severity: Medium

ID: 122719

File Name: centos_RHSA-2019-0230.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/11/2019

Updated: 2/5/2020

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2019-6133

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:polkit-devel, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:polkit-docs, p-cpe:/a:centos:centos:polkit

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/17/2019

Vulnerability Publication Date: 1/11/2019

Reference Information

CVE: CVE-2019-6133

RHSA: 2019:0230