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Red Hat Security Advisory 2018-3090-01

Red Hat Security Advisory 2018-3090-01
Posted Oct 31, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3090-01 - OVMF is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2018-0739
MD5 | 6f7dc29fa3c432cfc9c3e94c74fe72ec

Red Hat Security Advisory 2018-3090-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: ovmf security, bug fix, and enhancement update
Advisory ID: RHSA-2018:3090-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3090
Issue date: 2018-10-30
Cross references: CVE-2018-0739
CVE Names: CVE-2018-0739
=====================================================================

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
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (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.

The following packages have been upgraded to a later upstream version: ovmf
(20180508). (BZ#1559542)

Security Fix(es):

* openssl: Handling of crafted recursive ASN.1 structures can cause a stack
overflow and resulting denial of service (CVE-2018-0739)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.6 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/):

1561128 - OVMF Secure boot enablement (enrollment of default keys)
1561266 - CVE-2018-0739 openssl: Handling of crafted recursive ASN.1 structures can cause a stack overflow and resulting denial of service
1577546 - no input consoles connected under certain circumstances
1579518 - EFI_RNG_PROTOCOL no longer produced for virtio-rng
1607792 - add 'Provides: bundled(openssl) = 1.1.0h' to the spec file

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
ovmf-20180508-3.gitee3198e672e2.el7.src.rpm

noarch:
OVMF-20180508-3.gitee3198e672e2.el7.noarch.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

Source:
ovmf-20180508-3.gitee3198e672e2.el7.src.rpm

noarch:
AAVMF-20180508-3.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-2018-0739
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_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 2018 Red Hat, Inc.
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