WID-SEC-W-2023-0061

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

AMD Prozessoren: Mehrere Schwachstellen

view advisory published 2023-01-10

Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessoren ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen und Daten zu manipulieren.

01

describes (31)

Related CVEs.

IDseverity exploitable
CVE-2023-20532USmedium5.3—
Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service.
CVE-2023-20531UShigh7.5—
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.
CVE-2023-20530UShigh7.5—
Insufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of service.
CVE-2023-20529UShigh7.5—
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.
CVE-2023-20528USlow2.4—
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.
CVE-2023-20527USmedium6.5—
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.
CVE-2023-20525USmedium6.5—
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 o…
CVE-2023-20523USmedium5.7—
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.
CVE-2023-20522UShigh7.5—
Insufficient input validation in ASP may allow an attacker with a malicious BIOS to potentially cause a denial of service.
CVE-2022-23814USmedium5.3—
Failure to validate addresses provided by software to BIOS commands may result in a potential loss of integrity of guest memory in a confidential compute environment.
CVE-2022-23813USmedium5.3—
The software interfaces to ASP and SMU may not enforce the SNP memory security policy resulting in a potential loss of integrity of guest memory in a confidential compute environme…
CVE-2021-46795USmedium4.7—
A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially re…
CVE-2021-46791USmedium5.5—
Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for M…
CVE-2021-46779UShigh7.1—
Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which…
CVE-2021-46768USmedium5.5—
Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a denial of service.
CVE-2021-46767USmedium6.1—
Insufficient input validation in the ASP may allow an attacker with physical access, unauthorized write access to memory potentially leading to a loss of integrity or denial of ser…
CVE-2021-26409UShigh7.8—
Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integri…
CVE-2021-26407USmedium5.5OT elevated—
A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.
CVE-2021-26404USmedium5.5—
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
CVE-2021-26403USmedium6.5OT elevated—
Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
showing 20 of 31
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references

External citations — patches, advisories, analysis.

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