Az elmúlt napokban az AMD két biztonsági figyelmeztetést tett közzé, amelyben lényegében az összes régebbi és újabb asztali, mobil és szerver processzor érintett. A hibák a magastól az alacsonyig mindenféle besorolást kaptak, és az összes hiba száma eléri a 30-at. Így az AMD CPU-val szerelt eszközök jelenlegi BIOS verzióját érdemes feljegyezni és az alaplapgyártó honlapját meglátogatni a már elkészült, vagy hamarosan elkészülő BIOS frissítések érdekében amelyben már az újabb AGESA került integrálásra. A Google, a Microsoft, az Oracle és további felek együttműködésével végzett biztonsági felülvizsgálatok során potenciális sebezhetőségeket fedeztek fel az AMD Platform Security Processor (PSP), az AMD System Management Unit (SMU), az AMD Secure Encrypted Virtualization (SEV) és más platformkomponensekben, amelyeket az AMD Athlon™, Ryzen™, Threadripper™ és EPYC™ AGESA™ PI csomagokban fedeztek fel.
Az AMD új AGESA-t ad ki az említett problémák enyhítésére, és hamarosan BIOS-frissítésekként elérhetőek lesznek a szerver, valamint az alaplapgyártók részészéről a végfelhasználók számára.
A bejelentések itt találhatóak:
- AMD-SB-1031 – AMD Client Vulnerabilities – January 2023
- AMD-SB-1032 – AMD Server Vulnerabilities – January 2023
Az első bejelentés által érintett CVE-k:
CVE-2021-26316, CVE-2021-26346, CVE-2021-46795
A második bejelentés alapján érintett CVE-k:
CVE-2021-26316, CVE-2021-26328, CVE-2021-26343, CVE-2021-26353, CVE-2021-26355, CVE-2021-26396, CVE-2021-26398, CVE-2021-26402, CVE-2021-26403, CVE-2021-26404, CVE-2021-26407, CVE-2021-26409, CVE-2021-39298, CVE-2021-46767, CVE-2021-46768, CVE-2021-46779, CVE-2021-46791, CVE-2022-23813, CVE-2022-23814, CVE-2023-20522, CVE-2023-20523, CVE-2023-20525, CVE-2023-20527, CVE-2023-20528, CVE-2023-20529, CVE-2023-20530, CVE-2023-20531, CVE-2023-20532
Érdemes a gyártói javításokat mihamarabb telepíteni.
CVE részletek
| CVE | Súlyosság | CVE leírás |
| CVE‑2021‑26316 | magas | 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. |
| CVE‑2021‑26346 | közepes | Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service. |
| CVE‑2021‑46795 | alacsony | 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 result in a denial of service. |
| CVE‑2021‑26316 | magas | 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 arbitrary code execution. |
| CVE-2021-26398 | magas | 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. |
| CVE-2021-26402 | magas | 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. |
| CVE-2021-39298 | magas | A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware. |
| CVE-2021-26328 | közepes | 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. |
| CVE-2021-26343 | közepes | 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. |
| CVE-2021-26355 | közepes | 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. |
| CVE-2021-26353 | közepes | Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity. |
| CVE-2021-26396 | közepes | Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest. |
| CVE-2021-26403 | közepes | Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality. |
| CVE-2021-26407 | közepes | A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure. |
| CVE-2021-26409 | közepes | 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 integrity. |
| CVE-2021-46779 | közepes | 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 may lead to potential loss of integrity and availability. |
| CVE-2021-46791 | közepes | 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 Measurement (DRTM) user application memory that may result in a potential denial of service. |
| CVE-2022-23813 | közepes | 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 environment. |
| CVE-2022-23814 | közepes | 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-2023-20529 | közepes | 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-2023-20530 | közepes | 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-2023-20531 | közepes | 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-2021-26404 | alacsony | Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure. |
| CVE-2021-46767 | alacsony | 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 service. |
| CVE-2021-46768 | alacsony | 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-2023-20522 | alacsony | Insufficient input validation in ASP may allow an attacker with a malicious BIOS to potentially cause a denial of service. |
| CVE-2023-20523 | alacsony | 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-2023-20525 | alacsony | 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. |
| CVE-2023-20527 | alacsony | 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-2023-20528 | alacsony | 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-2023-20532 | alacsony | Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service. |
Érintett asztali termékek
DESKTOP
|
CVE |
AMD Ryzen™ 2000 series Desktop Processors |
AMD Ryzen™ 2000 Series Desktop Processors |
AMD Ryzen™ 3000 Series Desktop Processors |
AMD Ryzen™ 5000 Series Desktop Processors |
AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics |
|
Minimum version to mitigate all listed CVEs |
Raven-FP5-AM4 1.1.0.D |
PinnaclePI-AM4 1.0.0.C |
N/A |
N/A |
ComboAM4v2 PI 1.2.0.8 |
|
CVE‑2021‑26316 |
Raven-FP5-AM4 1.1.0.D |
PinnaclePI-AM4 1.0.0.C |
N/A |
N/A |
ComboAM4v2 PI 1.2.0.4 |
|
CVE‑2021‑26346 |
N/A |
N/A |
N/A |
N/A |
ComboAM4v2 PI 1.2.0.8 |
|
CVE‑2021‑46795 |
N/A |
N/A |
N/A |
N/A |
ComboAM4v2 PI 1.2.0.5 |
HIGH END DESKTOP
|
CVE |
2nd Gen AMD Ryzen™ Threadripper™ Processors |
3rd Gen AMD Ryzen™ Threadripper™ Processors |
|
Minimum version to mitigate all listed CVEs |
SummitPI-SP3r2 1.1.0.5 |
CastlePeakPI-SP3r3 1.0.0.6 |
|
CVE‑2021‑26316 |
SummitPI-SP3r2 1.1.0.5 |
CastlePeakPI-SP3r3 1.0.0.6 |
|
CVE‑2021‑26346 |
N/A |
N/A |
|
CVE‑2021‑46795 |
N/A |
N/A |
WORKSTATION
|
CVE |
AMD Ryzen™ Threadripper™ PRO Processors |
AMD Ryzen™ Threadripper™ PRO Processors |
|
Minimum version to mitigate all listed CVEs |
CastlePeakWSPI-sWRX8 1.0.0.7 |
N/A |
|
CVE‑2021‑26316 |
CastlePeakWSPI-sWRX8 1.0.0.7 |
N/A |
|
CVE‑2021‑26346 |
N/A |
N/A |
|
CVE‑2021‑46795 |
N/A |
N/A |
MOBILE - AMD Athlon™ Series
|
CVE |
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics |
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics |
|
Minimum version to mitigate all listed CVEs |
PicassoPI-FP5 1.0.0.D |
PollockPI-FT5 1.0.0.3 |
|
CVE‑2021‑26316 |
PicassoPI-FP5 1.0.0.D |
PollockPI-FT5 1.0.0.3 |
|
CVE‑2021‑26346 |
N/A |
N/A |
|
CVE‑2021‑46795 |
N/A |
N/A |
MOBILE - AMD Ryzen™ Series
|
CVE |
AMD Ryzen™ 2000 Series Mobile Processors |
AMD Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics |
AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics |
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics |
AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics |
AMD Ryzen™ 6000 Series Mobile Processors |
|
Minimum version to mitigate all listed CVEs |
N/A |
PicassoPI-FP5 1.0.0.D ComboAM4PI 1.0.0.8 ComboAM4v2 PI 1.2.0.4 |
RenoirPI-FP6 1.0.0.9 |
CezannePI-FP6 1.0.0.B |
CezannePI-FP6 1.0.0.B |
N/A |
|
CVE‑2021‑26316 |
N/A |
PicassoPI-FP5 1.0.0.D ComboAM4PI 1.0.0.8 ComboAM4v2 PI 1.2.0.4 |
RenoirPI-FP6 1.0.0.7 ComboAM4v2 PI 1.2.0.4 |
CezannePI-FP6 1.0.0.6 |
CezannePI-FP6 1.0.0.6 |
N/A |
|
CVE‑2021‑26346 |
N/A |
N/A |
RenoirPI-FP6 1.0.0.9 |
CezannePI-FP6 1.0.0.B |
CezannePI-FP6 1.0.0.B |
N/A |
|
CVE‑2021‑46795 |
N/A |
N/A |
RenoirPI-FP6 1.0.0.7 ComboAM4v2 PI 1.2.0.5 |
CezannePI-FP6 1.0.0.6 |
CezannePI-FP6 1.0.0.6 |
N/A |
CHROMEBOOK
|
CVE |
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics |
AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics |
AMD Athlon™ Mobile Processors with Radeon™ Graphics |
|
Minimum version to mitigate all listed CVEs |
N/A |
N/A |
N/A |
|
CVE‑2021‑26316 |
N/A |
N/A |
N/A |
|
CVE‑2021‑26346 |
N/A |
N/A |
N/A |
|
CVE‑2021‑46795 |
N/A |
N/A |
N/A |
Érintett szerver termékek
|
CVE |
1st Gen AMD EPYC™ Processors |
2nd Gen AMD EPYC™ Processors |
3rd Gen AMD EPYC™ |
|
Minimum version to mitigate all listed CVEs |
NaplesPI 1.0.0.H |
RomePI 1.0.0.E |
MilanPI-SP3_1.0.0.9 |
|
CVE-2021-26316 |
NaplesPI 1.0.0.H |
RomePI 1.0.0.D |
MilanPI-SP3 1.0.0.8 |
|
CVE-2021-26328 |
N/A |
N/A |
MilanPI-SP3_1.0.0.8 |
|
CVE-2021-26355 |
N/A |
No fix planned |
MilanPI 1.0.0.7 |
|
CVE-2021-26353 |
N/A |
N/A |
MilanPI 1.0.0.4 |
|
CVE-2021-26396 |
N/A |
N/A |
MilanPI-SP3_1.0.0.9 |
|
CVE-2021-26398 |
NaplesPI 1.0.0.H |
RomePI 1.0.0.C |
MilanPI 1.0.0.4 |
|
CVE-2021-26402 |
N/A |
RomePI 1.0.0.B |
MilanPI 1.0.0.8 |
|
CVE-2021-26403 |
NaplesPI 1.0.0.E |
RomePI 1.0.0.9 |
N/A |
|
CVE-2021-26404 |
N/A |
N/A |
MilanPI-SP3_1.0.0.9 |
|
CVE-2021-39298 |
N/A |
RomePI 1.0.0.E |
MilanPI-SP3 1.0.0.8 |
|
CVE-2021-46768 |
N/A |
RomePI 1.0.0.D |
MilanPI 1.0.0.5 |
|
CVE-2021-46767 |
N/A |
RomePI 1.0.0.D |
MilanPI 1.0.0.6 |
|
CVE-2021-46779 |
NaplesPI 1.0.0.G |
RomePI 1.0.0.C |
MilanPI 1.0.0.4 |
|
CVE-2021-46791 |
N/A |
N/A |
MilanPI 1.0.0.3 |
|
CVE-2021-26343 |
N/A |
N/A |
MilanPI 1.0.0.3 |
|
CVE-2021-26407 |
N/A |
RomePI 1.0.0.A |
N/A |
|
CVE-2021-26409 |
N/A |
N/A |
MilanPI 1.0.0.3 |
|
CVE-2022-23813 |
N/A |
RomePI 1.0.0.E |
MilanPI-SP3 1.0.0.9 |
|
CVE-2022-23814 |
N/A |
N/A |
MilanPI-SP3 1.0.0.9 |
|
CVE-2023-20522 |
N/A |
RomePI 100D |
MilanPI 1.0.0.5 |
|
CVE-2023-20523 |
N/A |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
|
CVE-2023-20525 |
N/A |
RomePI 100D |
MilanPI 1.0.0.5 |
|
CVE-2023-20527 |
1.0.0.G |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
|
CVE-2023-20528 |
N/A |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
|
CVE-2023-20529 |
N/A |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
|
CVE-2023-20530 |
N/A |
N/A |
MilanPI 1.0.0.5 |
|
CVE-2023-20531 |
N/A |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
|
CVE-2023-20532 |
N/A |
RomePI 1.0.0.C |
MilanPI 1.0.0.5 |
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