RHSA-2019:2125: Moderate: ovmf security and enhancement update

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.<br>Security Fix(es):<br><li> edk2: Privilege escalation via processing of malformed files in TianoCompress.c (CVE-2017-5731)</li> <li> edk2: Privilege escalation via processing of malformed files in BaseUefiDecompressLib.c (CVE-2017-5732)</li> <li> edk2: Privilege escalation via heap-based buffer overflow in MakeTable() function (CVE-2017-5733)</li> <li> edk2: Privilege escalation via stack-based buffer overflow in MakeTable() function (CVE-2017-5734)</li> <li> edk2: Privilege escalation via heap-based buffer overflow in Decode() function (CVE-2017-5735)</li> <li> edk2: Logic error in MdeModulePkg in EDK II firmware allows for privilege escalation by authenticated users (CVE-2018-3613)</li> <li> openssl: Side-channel vulnerability on SMT/Hyper-Threading architectures (PortSmash) (CVE-2018-5407)</li> <li> edk2: Stack buffer overflow with corrupted BMP (CVE-2018-12181)</li> <li> edk2: buffer overflows in PartitionDxe and UdfDxe with long file names and invalid UDF media (CVE-2019-0160)</li> <li> edk2: stack overflow in XHCI causing denial of service (CVE-2019-0161)</li> 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.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.