Ubuntu Security Notice 4349-1 - 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. 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. Various other issues were also addressed.
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Red Hat Security Advisory 2019-3338-01 - EDK is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Issues addressed include a buffer overflow vulnerability.
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Red Hat Security Advisory 2019-2125-01 - OVMF is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Issues addressed include buffer overflow and denial of service vulnerabilities.
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