Action not permitted
Modal body text goes here.
Modal Title
Modal Body
ghsa-hw87-hg67-xw42
Vulnerability from github
Published
2025-09-05 15:31
Modified
2025-09-05 15:31
Severity ?
VLAI Severity ?
Details
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
{
"affected": [],
"aliases": [
"CVE-2024-21977"
],
"database_specific": {
"cwe_ids": [
"CWE-459"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-05T13:15:31Z",
"severity": "LOW"
},
"details": "Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.",
"id": "GHSA-hw87-hg67-xw42",
"modified": "2025-09-05T15:31:07Z",
"published": "2025-09-05T15:31:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21977"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
CVE-2024-21977 (GCVE-0-2024-21977)
Vulnerability from cvelistv5
Published
2025-09-05 12:58
Modified
2025-09-05 13:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-459 - Incomplete Cleanup
Summary
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-21977",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-05T13:34:55.383175Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-09-05T13:35:08.152Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "MilanPI 1.0.0.D"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 9004 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "GenoaPI 1.0.0.C"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 8004 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "GenoaPI 1.0.0.C"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000 WX-Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6_1.0.1.1"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7/FP7r2_1.0.0.B"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4v2 1.2.0.Cb"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM5 1.2.0.1"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7040 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PhoenixPI-FP8-FP7_1.1.0.3"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7/FP7r2_1.0.0.B"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7045 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "DragonRangeFL1 1.0.0.3e"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000 WX-Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7030 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6_1.0.1.1"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 8000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM5 1.2.0.1"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbMilanPI-SP3 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 9004 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbGenoaPI-SP5 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 8000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPhoenixPI-FP7r2_1.2.0.0"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 7000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedAM5PI 1.0.0.3"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 5000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbAM4PI 1.0.0.7"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "Embedded-PI_FP7r2 100A"
}
]
}
],
"datePublic": "2025-09-05T12:37:57.776Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.\u003cbr\u003e"
}
],
"value": "Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.2,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-459",
"description": "CWE-459 Incomplete Cleanup",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-09-05T12:58:39.312Z",
"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"shortName": "AMD"
},
"references": [
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html"
},
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html"
},
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "AMD PSIRT Automation 1.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"assignerShortName": "AMD",
"cveId": "CVE-2024-21977",
"datePublished": "2025-09-05T12:58:39.312Z",
"dateReserved": "2024-01-03T16:43:30.196Z",
"dateUpdated": "2025-09-05T13:35:08.152Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…