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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
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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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