RHEL 7 : ovmf (RHSA-2019:2125)

critical Nessus Plugin ID 127676
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing a security update.

Description

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

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.

OVMF (Open Virtual Machine Firmware) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es) :

* edk2: Privilege escalation via processing of malformed files in TianoCompress.c (CVE-2017-5731)

* edk2: Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c (CVE-2017-5732)

* edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function (CVE-2017-5733)

* edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function (CVE-2017-5734)

* edk2: Privilege escalation via heap-based buffer overflow in Decode() function (CVE-2017-5735)

* edk2: Logic error in MdeModulePkg in EDK II firmware allows for privilege escalation by authenticated users (CVE-2018-3613)

* openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash) (CVE-2018-5407)

* edk2: Stack buffer overflow with corrupted BMP (CVE-2018-12181)

* edk2: buffer overflows in PartitionDxe and UdfDxe with long file names and invalid UDF media (CVE-2019-0160)

* edk2: stack overflow in XHCI causing denial of service (CVE-2019-0161)

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

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Solution

Update the affected OVMF package.

See Also

http://www.nessus.org/u?3395ff0b

https://access.redhat.com/errata/RHSA-2019:2125

https://access.redhat.com/security/cve/cve-2017-5731

https://access.redhat.com/security/cve/cve-2017-5732

https://access.redhat.com/security/cve/cve-2017-5733

https://access.redhat.com/security/cve/cve-2017-5734

https://access.redhat.com/security/cve/cve-2017-5735

https://access.redhat.com/security/cve/cve-2018-3613

https://access.redhat.com/security/cve/cve-2018-5407

https://access.redhat.com/security/cve/cve-2018-12181

https://access.redhat.com/security/cve/cve-2019-0160

https://access.redhat.com/security/cve/cve-2019-0161

Plugin Details

Severity: Critical

ID: 127676

File Name: redhat-RHSA-2019-2125.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/12/2019

Updated: 10/24/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:OVMF, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2019

Vulnerability Publication Date: 11/15/2018

Reference Information

CVE: CVE-2017-5731, CVE-2017-5732, CVE-2017-5733, CVE-2017-5734, CVE-2017-5735, CVE-2018-12181, CVE-2018-3613, CVE-2018-5407, CVE-2019-0160, CVE-2019-0161

RHSA: 2019:2125