AMD Ryzen SMM AmdCpmGpioInitSmm control flow

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in AMD Ryzen. Affected by this vulnerability is the function AmdCpmGpioInitSmm of the component SMM Handler. This manipulation causes control flow. This vulnerability is registered as CVE-2023-20559. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in AMD Ryzen (affected version unknown). Affected by this vulnerability is the function AmdCpmGpioInitSmm of the component SMM Handler. The manipulation with an unknown input leads to a control flow vulnerability. The CWE definition for the vulnerability is CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

The weakness was published 04/03/2023. The advisory is shared at amd.com. This vulnerability is known as CVE-2023-20559 since 10/27/2022. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Control flow
CWE: CWE-670
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2022 🔍
04/03/2023 +158 days 🔍
04/03/2023 +0 days 🔍
04/21/2023 +18 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20559 (🔍)
GCVE (CVE): GCVE-0-2023-20559
GCVE (VulDB): GCVE-100-224785

Entryinfo

Created: 04/03/2023 09:30
Updated: 04/21/2023 15:03
Changes: 04/03/2023 09:30 (37), 04/21/2023 15:03 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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