Vulnerability-Lookup

RHSA-2019:1116

Vulnerability from csaf_redhat - Published: 2019-05-08 13:44 - Updated: 2025-11-21 18:08

Summary

Red Hat Security Advisory: redhat-virtualization-host security update

Severity

Important

Notes

Topic: An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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.

Details: OVMF (Open Virtual Machine Firmware) is an EDK II (edk2) based project to enable UEFI support for Virtual Machines. The ovmf package contains a sample 64-bit UEFI firmware for QEMU and KVM, including the edk2 package. The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Security Fix(es): * edk2: Buffer Overflow in BlockIo service for RAM disk (CVE-2018-12180) 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. Bug Fix(es): * Previously, after upgrading Red Hat Virtualization Host from rhvh-4.1-0.20180425.0 to rhvh-4.2.4.3-0.20180627, the owner and group of sshd.conf were incorrectly changed from root:root to sssd:sssd. As a result, RHEL IdM accounts using sssd could not ssh into the host. The current release fixes this issue. (BZ#1608513)

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2018-12180

A flaw was found in edk2. When registering a RAM disk whose size is not a multiple of 512 bytes, the BlockIo protocol produced by the RamDiskDxe driver will incur memory read/write overrun. The memory overrun will happen when reading/writing the last block on the RAM disk. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

8.3 (High)


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

CWE-787 - Out-of-bounds Write

Affected products

Fixed 5 products

Product	Version	Remediation
Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3-20190418.0.el7_6.src	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3-20190418.0.el7_6.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.6.el7.src	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.6.el7.x86_64	—	Vendor Fix fix
Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3-0.6.el7.noarch	—	Vendor Fix fix

Threats

Impact Important

References

12 references

URL	Category
https://access.redhat.com/errata/RHSA-2019:1116	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1608513	external
https://bugzilla.redhat.com/show_bug.cgi?id=1683372	external
https://bugzilla.redhat.com/show_bug.cgi?id=1696303	external
https://bugzilla.redhat.com/show_bug.cgi?id=1700782	external
https://bugzilla.redhat.com/show_bug.cgi?id=1700868	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2018-12180	self
https://bugzilla.redhat.com/show_bug.cgi?id=1683372	external
https://www.cve.org/CVERecord?id=CVE-2018-12180	external
https://nvd.nist.gov/vuln/detail/CVE-2018-12180	external

JSON

To clipboard

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        }
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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            "version": "3.0"
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          "details": "Important"
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      "title": "edk2: Buffer Overflow in BlockIo service for RAM disk"
    }
  ]
}

CVE-2018-12180 (GCVE-0-2018-12180)

Vulnerability from cvelistv5 – Published: 2019-03-27 19:22 – Updated: 2024-08-05 08:30

Summary

Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via network access.

Severity ?

No CVSS data available.

CWE

Escalation of Privilege, Information Disclosure and/or Denial of Service

Assigner

intel

References

8 references

URL	Tags
https://edk2-docs.gitbooks.io/security-advisory/c…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://support.hpe.com/hpsc/doc/public/display?d…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:0809	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:0968	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1116	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/4349-1/	vendor-advisoryx_refsource_UBUNTU

Impacted products

1 product

Vendor	Product	Version
Extensible Firmware Interface Development Kit (EDK II)	Extensible Firmware Interface Development Kit (EDK II)	Affected: N/A

Date Public ?

2019-03-26 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2019:1116

CVE-2018-12180 (GCVE-0-2018-12180)

Tags

Sightings

Nomenclature