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Red Hat Security Advisory

Synopsis: Moderate: ovmf security and enhancement update
Advisory ID: RHSA-2019:2125-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2125
Issue date: 2019-08-06
CVE Names: CVE-2017-5731 CVE-2017-5732 CVE-2017-5733
CVE-2017-5734 CVE-2017-5735 CVE-2018-3613
CVE-2018-5407 CVE-2018-12181 CVE-2019-0160
CVE-2019-0161
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 7) – noarch

3. Description:

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.

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/):

1641433 – CVE-2018-3613 edk2: Logic error in MdeModulePkg in EDK II firmware allows for privilege escalation by authenticated users
1641442 – CVE-2017-5731 edk2: Privilege escalation via processing of malformed files in TianoCompress.c
1641446 – CVE-2017-5732 edk2: Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c
1641450 – CVE-2017-5733 edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function
1641458 – CVE-2017-5734 edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function
1641465 – CVE-2017-5735 edk2: Privilege escalation via heap-based buffer overflow in Decode() function
1645695 – CVE-2018-5407 openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash)
1686783 – CVE-2018-12181 edk2: Stack buffer overflow with corrupted BMP
1691640 – CVE-2019-0160 edk2: buffer overflows in PartitionDxe and UdfDxe with long file names and invalid UDF media
1694065 – CVE-2019-0161 edk2: stack overflow in XHCI causing denial of service

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
ovmf-20180508-6.gitee3198e672e2.el7.src.rpm

noarch:
OVMF-20180508-6.gitee3198e672e2.el7.noarch.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

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
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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