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.

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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3338 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: 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)

    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 8.1 Release Notes     linked from 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 these issues 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-6920-1 advisory.

    It was discovered that EDK II was not properly performing bounds checks in Tianocompress, which could lead     to a buffer overflow. An authenticated user could use this issue to potentially escalate their privileges     via

    local access. (CVE-2017-5731)

    It was discovered that EDK II had an insufficient memory write check in the SMM service, which could lead     to a page fault occurring. An

    authenticated user could use this issue to potentially escalate their privileges, disclose information     and/or create a denial of service via local access. (CVE-2018-12182)

    It was discovered that EDK II incorrectly handled memory in DxeCore, which could lead to a stack overflow.
    An unauthenticated user could this issue to potentially escalate their privileges, disclose information

    and/or create a denial of service via local access. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2018-12183)

    It was discovered that EDK II incorrectly handled memory in the Variable service under certain     circumstances. An authenticated user could use this issue to potentially escalate their privileges,     disclose

    information and/or create a denial of service via local access. (CVE-2018-3613)

    It was discovered that EDK II incorrectly handled memory in its system firmware, which could lead to a     buffer overflow. An unauthenticated user could use this issue to potentially escalate their privileges     and/or

    create a denial of service via network access. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-0160)

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.

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

  - Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable     escalation of privilege and/or denial of service via network access. (CVE-2019-0160)

  - Bounds checking in Tianocompress before November 7, 2017 may allow an authenticated user to potentially     enable an escalation of privilege via local access. (CVE-2017-5731)

  - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was in a CNA     pool that was not assigned to any issues during 2017. Notes: none (CVE-2017-5732, CVE-2017-5733,     CVE-2017-5735)

  - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn     by its CNA. Notes: none (CVE-2017-5734)

  - Stack overflow in corrupted bmp for EDK II may allow unprivileged user to potentially enable denial of     service or elevation of privilege via local access. (CVE-2018-12181)

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

This update for ovmf fixes the following issues :

Security issues fixed :

CVE-2019-0160: Fixed multiple buffer overflows in UDF-related codes in MdeModulePkg\Universal\Disk\PartitionDxe\Udf.c and MdeModulePkg\Universal\Disk\UdfDxe (bsc#1130267).

CVE-2018-12181: Fixed a stack-based buffer overflow in the HII database when a corrupted Bitmap was used (bsc#1128503).

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	Published	Updated	Severity
128356	CentOS 7 : ovmf (CESA-2019:2125)	Nessus	CentOS Local Security Checks	8/30/2019	12/31/2019	critical
130528	RHEL 8 : edk2 (RHSA-2019:3338)	Nessus	Red Hat Local Security Checks	11/6/2019	11/6/2024	critical
204912	Ubuntu 16.04 LTS / 18.04 LTS : EDK II vulnerabilities (USN-6920-1)	Nessus	Ubuntu Local Security Checks	7/31/2024	9/3/2025	critical
160735	NewStart CGSL CORE 5.04 / MAIN 5.04 : ovmf Multiple Vulnerabilities (NS-SA-2022-0009)	Nessus	NewStart CGSL Local Security Checks	5/9/2022	8/29/2025	critical
123548	SUSE SLES15 Security Update : ovmf (SUSE-SU-2019:0804-1)	Nessus	SuSE Local Security Checks	4/1/2019	6/6/2024	critical
123444	SUSE SLES12 Security Update : ovmf (SUSE-SU-2019:0766-1)	Nessus	SuSE Local Security Checks	3/28/2019	6/7/2024	critical

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