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.

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2019-4668 advisory.

    [1:1.2-5.el7]
    - Update spec file to remove 'modprobe kvm-intel' and remove --enable-kvm arg to ovmf_vars_generator so     qemu will not require kvm kernel module. (Aaron Young)
    - Update spec file to modprobe kvm_intel module prior to running qemu to enroll default keys. (Aaron     Young)
    - Enroll Oracle cert/key for OL secureboot support. (Aaron Young)

    [1:1.2-2.el7]
    - Change Image.c image load error to DEBUG_WARN from DEBUG_ERROR since it is normal for some images to     fail to load if the associated hardware is not present. Such is the case with Ramfb. (Aaron Young)     [Orabug: 28868674]
    - Fix AAVMF build. Pull in OpenSSL code (as is done for x86_64) (Aaron Young)
    - Update AAVMF change log for version 1.2 (Aaron Young)

    [1:1.2-1.el7]
    - Update spec files and OVMF change log to version 1.2

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2019-4785 advisory.

    [1:1.2-5.el7]
    - Update spec file to remove 'modprobe kvm-intel' and remove --enable-kvm arg to ovmf_vars_generator so     qemu will not require kvm kernel module. (Aaron Young)
    - Update spec file to modprobe kvm_intel module prior to running qemu to enroll default keys. (Aaron     Young)
    - Enroll Oracle cert/key for OL secureboot support. (Aaron Young)

    [1:1.2-2.el7]
    - Change Image.c image load error to DEBUG_WARN from DEBUG_ERROR since it is normal for some images to     fail to load if the associated hardware is not present. Such is the case with Ramfb. (Aaron Young)     [Orabug: 28868674]
    - Fix AAVMF build. Pull in OpenSSL code (as is done for x86_64) (Aaron Young)
    - Update AAVMF change log for version 1.2 (Aaron Young)

    [1:1.2-1.el7]
    - Update spec files and OVMF change log to version 1.2

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2019:0968 advisory.

  - edk2: Buffer Overflow in BlockIo service for RAM disk (CVE-2018-12180)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4349-1 advisory.

    A buffer overflow was discovered in the network stack. An unprivileged user could potentially enable     escalation of privilege and/or denial of service. This issue was already fixed in a previous release for     18.04 LTS and 19.10. (CVE-2018-12178)

    A buffer overflow was discovered in BlockIo service. An unauthenticated user could potentially enable     escalation of privilege, information disclosure and/or denial of service. This issue was already fixed in     a previous release for 18.04 LTS and 19.10. (CVE-2018-12180)

    A stack overflow was discovered in bmp. An unprivileged user could potentially enable denial of service or     elevation of privilege via local access. This issue was already fixed in a previous release for 18.04 LTS     and 19.10. (CVE-2018-12181)

    It was discovered that memory was not cleared before free that could lead to potential password leak.
    (CVE-2019-14558)

    A memory leak was discovered in ArpOnFrameRcvdDpc. An attacker could possibly use this issue to cause a     denial of service or other unspecified impact. (CVE-2019-14559)

    An integer overflow was discovered in MdeModulePkg/PiDxeS3BootScriptLib. An attacker could possibly use     this issue to cause a denial of service or other unspecified impact. (CVE-2019-14563)

    It was discovered that the affected version doesn't properly check whether an unsigned EFI file should be     allowed or not. An attacker could possibly load unsafe content by bypassing the verification.
    (CVE-2019-14575)

    It was discovered that original configuration runtime memory is freed, but it is still exposed to the OS     runtime. (CVE-2019-14586)

    A double-unmap was discovered in TRB creation. An attacker could use it to cause a denial of service or     other unspecified impact. (CVE-2019-14587)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Logic error in FV parsing in MdeModulePkg\Core\Pei\FwVol\FwVol.c (CVE-2018-3630)

Logic issue in variable service module for EDK II/UDK2018/UDK2017/UDK2015 may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2017-5734)

A missing check leads to an out-of-bounds read and write flaw in NetworkPkg/DnsDxe as shipped in edk2, when it parses DNS responses. A remote attacker who controls the DNS server used by the vulnerable firmware may use this flaw to make the system crash. (CVE-2018-3613)

improper DNS packet size check (CVE-2018-12178)

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

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

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

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

A stack-based buffer overflow was discovered in edk2 when the HII database contains a Bitmap that claims to be 4-bit or 8-bit per pixel, but the palette contains more than 16(2^4) or 256(2^8) colors.
(CVE-2018-12181)

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.
(CVE-2018-12180)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2019-0968 advisory.

    [20180508gitee3198e672e2-9.el8_0]
    - edk2-MdeModulePkg-PartitionDxe-Ensure-blocksize-holds-MBR.patch [bz#1690501]
    - edk2-MdeModulePkg-RamDiskDxe-Restrict-on-RAM-disk-size-CV.patch [bz#1690501]
    - Resolves: bz#1690501       (CVE-2018-12180 edk2: Buffer Overflow in BlockIo service for RAM disk [rhel-8.0.0.z])

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has ovmf packages installed that are affected by a vulnerability:

  - 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. (CVE-2018-12180)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has ovmf packages installed that are affected by a vulnerability:

  - 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. (CVE-2018-12180)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:1116 advisory.

    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)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:0968 advisory.

    EDK (Embedded Development Kit) 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: 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Use YYYYMMDD versioning to fix upgrade path

----

  - Update to stable-201903

  - Update to openssl-1.1.0j

  - Move to python3 deps

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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 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.

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: 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.

Security Fix(es) :

  - edk2: Buffer Overflow in BlockIo service for RAM disk     (CVE-2018-12180)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:0809 advisory.

    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: 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

From Red Hat Security Advisory 2019:0809 :

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 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.

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: 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.

This update for ovmf fixes the following issues :

Security issues fixed :

  - CVE-2018-12180: Fixed a buffer overflow in BlockIo     service, which could lead to memory read/write overrun     (bsc#1127820).

  - CVE-2018-12178: Fixed an improper DNS check upon     receiving a new DNS packet (bsc#1127821).

  - CVE-2018-3630: Fixed a logic error in FV parsing which     could allow a local attacker to bypass the chain of     trust checks (bsc#1127822).

This update was imported from the SUSE:SLE-15:Update update project.

This update for ovmf fixes the following issues :

Security issues fixed :

  - CVE-2018-12180: Fixed a buffer overflow in BlockIo     service, which could lead to memory read/write overrun     (bsc#1127820).

  - CVE-2018-12178: Fixed an improper DNS check upon     receiving a new DNS packet (bsc#1127821).

  - CVE-2018-3630: Fixed a logic error in FV parsing which     could allow a local attacker to bypass the chain of     trust checks (bsc#1127822).&#9; 

This update was imported from the SUSE:SLE-12-SP3:Update update project.

This update for ovmf fixes the following issues :

Security issues fixed :

CVE-2018-12180: Fixed a buffer overflow in BlockIo service, which could lead to memory read/write overrun (bsc#1127820).

CVE-2018-12178: Fixed an improper DNS check upon receiving a new DNS packet (bsc#1127821).

CVE-2018-3630: Fixed a logic error in FV parsing which could allow a local attacker to bypass the chain of trust checks (bsc#1127822).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
180703	Oracle Linux 7 : edk2 (ELSA-2019-4668)	Nessus	Oracle Linux Local Security Checks	critical
180680	Oracle Linux 7 : edk2 (ELSA-2019-4785)	Nessus	Oracle Linux Local Security Checks	critical
145682	CentOS 8 : edk2 (CESA-2019:0968)	Nessus	CentOS Local Security Checks	high
136282	Ubuntu 16.04 LTS / 18.04 LTS : EDK II vulnerabilities (USN-4349-1)	Nessus	Ubuntu Local Security Checks	critical
128287	Amazon Linux 2 : edk2 (ALAS-2019-1273)	Nessus	Amazon Linux Local Security Checks	critical
127567	Oracle Linux 8 : edk2 (ELSA-2019-0968)	Nessus	Oracle Linux Local Security Checks	high
127297	NewStart CGSL CORE 5.05 / MAIN 5.05 : ovmf Vulnerability (NS-SA-2019-0083)	Nessus	NewStart CGSL Local Security Checks	high
127284	NewStart CGSL CORE 5.04 / MAIN 5.04 : ovmf Vulnerability (NS-SA-2019-0076)	Nessus	NewStart CGSL Local Security Checks	high
124842	RHEL 7 : redhat-virtualization-host (RHSA-2019:1116)	Nessus	Red Hat Local Security Checks	high
124663	RHEL 8 : edk2 (RHSA-2019:0968)	Nessus	Red Hat Local Security Checks	high
124486	Fedora 30 : edk2 (2019-3b96bb5186)	Nessus	Fedora Local Security Checks	critical
124415	CentOS 7 : ovmf (CESA-2019:0809)	Nessus	CentOS Local Security Checks	high
124262	Scientific Linux Security Update : ovmf on (20190423)	Nessus	Scientific Linux Local Security Checks	high
124255	RHEL 7 : ovmf (RHSA-2019:0809)	Nessus	Red Hat Local Security Checks	high
124253	Oracle Linux 7 : ovmf (ELSA-2019-0809)	Nessus	Oracle Linux Local Security Checks	high
123543	openSUSE Security Update : ovmf (openSUSE-2019-1083)	Nessus	SuSE Local Security Checks	critical
122963	openSUSE Security Update : ovmf (openSUSE-2019-348)	Nessus	SuSE Local Security Checks	critical
122775	SUSE SLES12 Security Update : ovmf (SUSE-SU-2019:0581-1)	Nessus	SuSE Local Security Checks	critical
122774	SUSE SLES15 Security Update : ovmf (SUSE-SU-2019:0580-1)	Nessus	SuSE Local Security Checks	critical
122773	SUSE SLES12 Security Update : ovmf (SUSE-SU-2019:0579-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2018-12180

high

Tenable Plugins

critical

critical

high

critical

critical

high

high

high

high

high

critical

high

high

high

high

critical

critical

critical

critical

critical