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RHEL 7 : polkit (RHSA-2016:0189)

medium Nessus Plugin ID 88788

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Synopsis

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

Description

Updated polkit packages that fix one security issue are now available for Red Hat Enterprise Linux 7.

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

PolicyKit is a toolkit for defining and handling authorizations.

A denial of service flaw was found in how polkit handled authorization requests. A local, unprivileged user could send malicious requests to polkit, which could then cause the polkit daemon to corrupt its memory and crash. (CVE-2015-3256)

All polkit users should upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2016:0189

https://access.redhat.com/security/cve/cve-2015-3256

Plugin Details

Severity: Medium

ID: 88788

File Name: redhat-RHSA-2016-0189.nasl

Version: 2.12

Type: local

Agent: unix

Published: 2/17/2016

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: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:polkit, cpe:/o:redhat:enterprise_linux:7.3, cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:enterprise_linux:7.5, p-cpe:/a:redhat:enterprise_linux:polkit-debuginfo, p-cpe:/a:redhat:enterprise_linux:polkit-docs, cpe:/o:redhat:enterprise_linux:7.7, cpe:/o:redhat:enterprise_linux:7.2, p-cpe:/a:redhat:enterprise_linux:polkit-devel, cpe:/o:redhat:enterprise_linux:7.6

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: 2/16/2016

Vulnerability Publication Date: 10/26/2015

Reference Information

CVE: CVE-2015-3256

RHSA: 2016:0189