Epyc 7251 Firmware
by AMD
CVEs (40)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2021-26403 | Med | 0.42 | 6.5 | 0.00 | Jan 11, 2023 | Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality. | ||
| CVE-2022-23825 | Med | 0.42 | 6.5 | 0.01 | Jul 14, 2022 | Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure. | ||
| CVE-2022-23823 | Med | 0.42 | 6.5 | 0.01 | Jun 15, 2022 | A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure. | ||
| CVE-2021-46744 | Med | 0.42 | 6.5 | 0.00 | May 11, 2022 | An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time. | ||
| CVE-2021-26341 | Med | 0.42 | 6.5 | 0.00 | Mar 11, 2022 | Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage. | ||
| CVE-2023-20588 | Med | 0.37 | 5.5 | 0.11 | Aug 8, 2023 | A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. | ||
| CVE-2021-26371 | Med | 0.36 | 5.5 | 0.00 | May 9, 2023 | A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information disclosure. | ||
| CVE-2022-23824 | Med | 0.36 | 5.5 | 0.01 | Nov 9, 2022 | IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure. | ||
| CVE-2021-46778 | Med | 0.36 | 5.6 | 0.00 | Aug 10, 2022 | Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may… | ||
| CVE-2021-26401 | Med | 0.36 | 5.6 | 0.00 | Mar 11, 2022 | LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs. | ||
| CVE-2020-12966 | Med | 0.36 | 5.5 | 0.00 | Feb 4, 2022 | AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this… | ||
| CVE-2021-26330 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources. | ||
| CVE-2021-26321 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP. | ||
| CVE-2021-26320 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP | ||
| CVE-2020-12954 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | A side effect of an integrated chipset option may be able to be used by an attacker to bypass SPI ROM protections, allowing unauthorized SPI ROM modification. | ||
| CVE-2021-26329 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources. | ||
| CVE-2021-26312 | Med | 0.36 | 5.5 | 0.00 | Nov 16, 2021 | 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 loss of integrity. | ||
| CVE-2023-20521 | Low | 0.21 | 3.3 | 0.00 | Nov 14, 2023 | TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service. | ||
| CVE-2021-26342 | Low | 0.21 | 3.3 | 0.00 | May 11, 2022 | 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). The failure to flush the TLB may cause the microcode to use stale TLB… | ||
| CVE-2023-20526 | Low | 0.12 | 1.9 | 0.00 | Nov 14, 2023 | Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality. |
- risk 0.42cvss 6.5epss 0.00
Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
- risk 0.42cvss 6.5epss 0.01
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure.
- risk 0.42cvss 6.5epss 0.01
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
- risk 0.42cvss 6.5epss 0.00
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
- risk 0.42cvss 6.5epss 0.00
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
- risk 0.37cvss 5.5epss 0.11
A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.
- risk 0.36cvss 5.5epss 0.00
A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information disclosure.
- risk 0.36cvss 5.5epss 0.01
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
- risk 0.36cvss 5.6epss 0.00
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may…
- risk 0.36cvss 5.6epss 0.00
LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.
- risk 0.36cvss 5.5epss 0.00
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this…
- risk 0.36cvss 5.5epss 0.00
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
- risk 0.36cvss 5.5epss 0.00
Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.
- risk 0.36cvss 5.5epss 0.00
Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP
- risk 0.36cvss 5.5epss 0.00
A side effect of an integrated chipset option may be able to be used by an attacker to bypass SPI ROM protections, allowing unauthorized SPI ROM modification.
- risk 0.36cvss 5.5epss 0.00
AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.
- risk 0.36cvss 5.5epss 0.00
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 loss of integrity.
- risk 0.21cvss 3.3epss 0.00
TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.
- risk 0.21cvss 3.3epss 0.00
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). The failure to flush the TLB may cause the microcode to use stale TLB…
- risk 0.12cvss 1.9epss 0.00
Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.
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