AMD EPYC™ Processors

• CVE-2021-26388 Unrated Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential denial of service. 0.2%
• CVE-2021-26376 Unrated Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of resources and/or denial of service. 0.2%
• CVE-2021-26373 Unrated Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of resources and/or possibly denial of service. 0.2%
• CVE-2021-26348 Unrated Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential los 0.2%
• CVE-2021-26364 Unrated Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which could result in an exception handling leading to a potential 0.2%
• CVE-2021-26349 Unrated Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent (MA). 0.2%
• CVE-2021-26378 Unrated Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service. 0.2%
• CVE-2021-26342 Unrated In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). T 0.2%
• CVE-2021-26375 Unrated Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in access/updates from/to invalid address space that could result in denial of service. 0.2%
• CVE-2021-26372 Unrated Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service. 0.2%
• CVE-2021-26339 Unrated A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific c 0.3%
• CVE-2021-26350 Unrated A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message port register which may result in a potential denial of service. 0.1%
• CVE-2021-26312 Unrated Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential los 0.2%