cve-2021-26344
Vulnerability from cvelistv5
Published
2024-08-13 16:49
Modified
2024-08-13 18:33
Severity
Summary
An out of bounds memory write when processing the AMD
PSP1 Configuration Block (APCB) could allow an attacker with access the ability
to modify the BIOS image, and the ability to sign the resulting image, to
potentially modify the APCB block resulting in arbitrary code execution.
References
Impacted products
{
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{
"affected": [
{
"cpes": [
"cpe:2.3:h:amd:naplespi:-:*:*:*:*:*:*:*"
],
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"product": "naplespi",
"vendor": "amd",
"versions": [
{
"lessThan": "1.0.0.k",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:h:amd:romepi:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "romepi",
"vendor": "amd",
"versions": [
{
"lessThan": "1.0.0.C",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:h:amd:milanpi:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "milanpi",
"vendor": "amd",
"versions": [
{
"lessThan": "1.0.0.5",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"metrics": [
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"options": [
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"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-13T18:29:11.333464Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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"title": "CISA ADP Vulnrichment"
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"cna": {
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{
"defaultStatus": "affected",
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]
},
{
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"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RomePI 1.0.0.C"
}
]
},
{
"defaultStatus": "affected",
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"vendor": "AMD",
"versions": [
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]
},
{
"defaultStatus": "affected",
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"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processor with Radeon\u2122 Graphics",
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"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
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}
]
},
{
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"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
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"versions": [
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}
]
},
{
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"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors",
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"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.6"
}
]
},
{
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"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
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{
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}
]
},
{
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"versions": [
{
"status": "affected",
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}
]
},
{
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"versions": [
{
"status": "affected",
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}
]
},
{
"defaultStatus": "affected",
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"versions": [
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"version": "various"
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]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7020 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "MendocinoPI-FT6 1.0.0.3"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.7"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.7"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
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"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
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"versions": [
{
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"version": "CezannePI-FP6 1.0.0.E"
}
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},
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"product": "AMD EPYC\u2122 Embedded 7002 Series Processors",
"vendor": "AMD",
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{
"status": "unaffected",
"version": "EmbRomePI-SP3 1.0.0.6"
}
]
},
{
"defaultStatus": "affected",
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"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "Various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbMilanPI-SP3 1.0.0.2"
}
]
},
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}
]
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}
]
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"version": "EmbeddedPI-FP7r2 1.0.0.4"
}
]
}
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"datePublic": "2024-08-13T16:00:00.000Z",
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"dateReserved": "2021-01-29T21:24:26.145Z",
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"nvd": "{\"cve\":{\"id\":\"CVE-2021-26344\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2024-08-13T17:15:17.113\",\"lastModified\":\"2024-08-14T02:07:05.410\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An out of bounds memory write when processing the AMD\\nPSP1 Configuration Block (APCB) could allow an attacker with access the ability\\nto modify the BIOS image, and the ability to sign the resulting image, to\\npotentially modify the APCB block resulting in arbitrary code execution.\"},{\"lang\":\"es\",\"value\":\"Una escritura de memoria fuera de los l\u00edmites al procesar el bloque de configuraci\u00f3n AMD PSP1 (APCB) podr\u00eda permitir que un atacante con acceso a la capacidad de modificar la imagen del BIOS y la capacidad de firmar la imagen resultante modifique potencialmente el bloque APCB, lo que resultar\u00eda en la ejecuci\u00f3n de c\u00f3digo arbitrario.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":0.6,\"impactScore\":6.0}]},\"references\":[{\"url\":\"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html\",\"source\":\"psirt@amd.com\"}]}}"
}
}
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