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30 matches found

CVE
CVE
added 2023/08/08 6:15 p.m.359 views

CVE-2023-20569

A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.

4.7CVSS6.6AI score0.0065EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.118 views

CVE-2023-20592

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.

6.5CVSS6.5AI score0.0036EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.110 views

CVE-2021-26316

Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.

7.8CVSS8AI score0.00075EPSS
CVE
CVE
added 2023/05/09 7:15 p.m.67 views

CVE-2021-26354

Insufficient bounds checking in ASP may allow anattacker to issue a system call from a compromised ABL which may causearbitrary memory values to be initialized to zero, potentially leading to aloss of integrity.

5.5CVSS7.2AI score0.00044EPSS
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CVE
added 2023/01/11 8:15 a.m.66 views

CVE-2021-26402

Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.

7.1CVSS7.2AI score0.00051EPSS
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CVE
added 2023/05/09 7:15 p.m.65 views

CVE-2021-26371

A compromised or malicious ABL or UApp couldsend a SHA256 system call to the bootloader, which may result in exposure ofASP memory to userspace, potentially leading to information disclosure.

5.5CVSS7.1AI score0.00061EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.65 views

CVE-2021-26398

Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential arbitrary code execution.

7.8CVSS7.9AI score0.00049EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.60 views

CVE-2023-20521

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.

5.7CVSS6.1AI score0.00037EPSS
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CVE
added 2023/11/14 7:15 p.m.59 views

CVE-2021-26345

Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.

4.9CVSS6.1AI score0.00027EPSS
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CVE
added 2023/01/11 8:15 a.m.57 views

CVE-2021-26343

Insufficient validation in ASP BIOS and DRTM commands may allow malicious supervisor x86 software to disclose the contents of sensitive memory which may result in information disclosure.

5.5CVSS6AI score0.0004EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.57 views

CVE-2021-46774

Insufficient DRAM address validation in SystemManagement Unit (SMU) may allow an attacker to read/write from/to an invalidDRAM address, potentially resulting in denial-of-service.

7.5CVSS7.8AI score0.00022EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.56 views

CVE-2023-20533

Insufficient DRAM address validation in SystemManagement Unit (SMU) may allow an attacker to read/write from/to an invalidDRAM address, potentially resulting in denial-of-service.

7.5CVSS7.5AI score0.00033EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.55 views

CVE-2023-20527

Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading to a denial-of-service.

6.5CVSS6.7AI score0.0011EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.53 views

CVE-2023-20531

Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space to an invalid value potentially resulting in a denial of service.

7.5CVSS7.5AI score0.00185EPSS
CVE
CVE
added 2023/05/09 7:15 p.m.52 views

CVE-2021-26356

A TOCTOU in ASP bootloader may allow an attackerto tamper with the SPI ROM following data read to memory potentially resultingin S3 data corruption and information disclosure.

7.4CVSS8.4AI score0.00135EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.51 views

CVE-2022-23830

SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.

5.3CVSS6.3AI score0.00072EPSS
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CVE
added 2023/01/11 8:15 a.m.51 views

CVE-2023-20529

Insufficient bound checks in the SMU may allow an attacker to update the from/to address space to an invalid value potentially resulting in a denial of service.

7.5CVSS7.5AI score0.00185EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.50 views

CVE-2021-26404

Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.

5.5CVSS6.2AI score0.00054EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.50 views

CVE-2023-20528

Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.

2.4CVSS4.6AI score0.0007EPSS
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CVE
added 2023/01/11 8:15 a.m.50 views

CVE-2023-20530

Insufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of service.

7.5CVSS7.6AI score0.00137EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.48 views

CVE-2023-20566

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.

7.5CVSS7.1AI score0.00049EPSS
CVE
CVE
added 2023/11/14 7:15 p.m.47 views

CVE-2023-20526

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.

4.6CVSS5.9AI score0.0004EPSS
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CVE
added 2023/01/11 8:15 a.m.47 views

CVE-2023-20532

Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service.

5.3CVSS5.9AI score0.0007EPSS
CVE
CVE
added 2023/01/11 8:15 a.m.46 views

CVE-2023-20523

TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.

5.7CVSS6.1AI score0.00064EPSS
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CVE
added 2023/01/11 8:15 a.m.45 views

CVE-2021-26355

Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service.

5.5CVSS6.1AI score0.00051EPSS
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CVE
added 2023/05/09 7:15 p.m.45 views

CVE-2021-26379

Insufficient input validation of mailbox data in theSMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentiallyleading to a loss of integrity and privilege escalation.

9.8CVSS9.3AI score0.00169EPSS
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CVE
added 2023/01/11 8:15 a.m.45 views

CVE-2023-20525

Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped register potentially leading to a denial of service.

6.5CVSS6.6AI score0.0011EPSS
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CVE
added 2023/01/11 8:15 a.m.41 views

CVE-2021-26396

Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.

4.4CVSS5.5AI score0.00021EPSS
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CVE
added 2023/05/09 7:15 p.m.41 views

CVE-2021-26397

Insufficient address validation, may allow anattacker with a compromised ABL and UApp to corrupt sensitive memory locationspotentially resulting in a loss of integrity or availability.

7.1CVSS7.3AI score0.00032EPSS
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CVE
added 2023/01/11 8:15 a.m.32 views

CVE-2021-26328

Failure to verify the mode of CPU execution at the time of SNP_INIT may lead to a potential loss of memory integrity for SNP guests.

4.4CVSS5.7AI score0.0005EPSS