VDB-273627 · CVE-2024-21980 · GCVE-0-2024-21980

AMD EPYC Embedded 9003 SNP Firmware memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in AMD 3rd Gen EPYC Processors, 4th Gen EPYC Processors, EPYC Embedded 7003 and EPYC Embedded 9003. This affects an unknown part of the component SNP Firmware. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2024-21980. The attack requires a local approach. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in AMD 3rd Gen EPYC Processors, 4th Gen EPYC Processors, EPYC Embedded 7003 and EPYC Embedded 9003 (the affected version is unknown). This affects an unknown code of the component SNP Firmware. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

It is possible to read the advisory at amd.com. This vulnerability is uniquely identified as CVE-2024-21980 since 01/03/2024. The exploitability is told to be easy. Attacking locally is a requirement. Additional levels of successful authentication are required for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.9
NVD Vector: 🔍

CNA Base Score: 7.9
CNA Vector (AMD): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2024 🔍
08/05/2024 +214 days 🔍
08/05/2024 +0 days 🔍
11/27/2024 +114 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2024-21980 (🔍)
GCVE (CVE): GCVE-0-2024-21980
GCVE (VulDB): GCVE-100-273627

Entryinfo

Created: 08/05/2024 18:52
Updated: 11/27/2024 06:25
Changes: 08/05/2024 18:52 (62), 11/27/2024 06:25 (13)
Complete: 🔍
Cache ID: 216::103