CVE-2021-35465 (GCVE-0-2021-35465)
Vulnerability from cvelistv5 – Published: 2021-08-23 12:44 – Updated: 2024-08-04 00:40
VLAI?
Summary
Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T00:40:45.965Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://developer.arm.com/support/arm-security-updates"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration)."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-08-23T12:44:08.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://developer.arm.com/support/arm-security-updates"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-35465",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration)."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://developer.arm.com/support/arm-security-updates",
"refsource": "MISC",
"url": "https://developer.arm.com/support/arm-security-updates"
},
{
"name": "https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability",
"refsource": "CONFIRM",
"url": "https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-35465",
"datePublished": "2021-08-23T12:44:08.000Z",
"dateReserved": "2021-06-23T00:00:00.000Z",
"dateUpdated": "2024-08-04T00:40:45.965Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-35465",
"date": "2026-04-26",
"epss": "0.00115",
"percentile": "0.29822"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-35465\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-08-23T13:15:07.667\",\"lastModified\":\"2024-11-21T06:12:20.060\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).\"},{\"lang\":\"es\",\"value\":\"Determinados productos de Arm antes del 23-08-2021 no consideran apropiadamente el efecto de las excepciones en una instrucci\u00f3n VLLDM. Un manejador no seguro puede tener acceso de lectura o escritura a parte de un contexto seguro. Esto afecta a Arm Cortex-M33 r0p0 versiones hasta r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 versiones hasta r1p0, y Arm China STAR-MC1 (en la configuraci\u00f3n STAR SE).\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":3.4,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":0.8,\"impactScore\":2.5}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:N\",\"baseScore\":3.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":4.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arm:cortex-m33_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"r0p0\",\"versionEndIncluding\":\"r1p0\",\"matchCriteriaId\":\"8743FD78-DA56-4809-9BE7-2CD84F785598\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arm:cortex-m33:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4595439A-ADC7-4C65-9DEB-6DEFE8F9A48F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arm:cortex-m35p_firmware:r0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F7CD4A53-9AFC-40CA-8BA3-611B2E27AC51\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arm:cortex-m35p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"420AB2CA-D4C8-46C8-9E0F-813ADBF5DCBC\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arm:cortex-m55_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"r0p0\",\"versionEndIncluding\":\"r1p0\",\"matchCriteriaId\":\"7D345484-BA9B-4F6C-9B54-6FEB6C8F0DC6\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arm:cortex-m55:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"79E2E419-58A9-4F2E-B7A7-C9CB177F6543\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arm:china_star-mc1_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"325B4E68-0CEB-4D13-AF1E-118C4851A28C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arm:china_star-mc1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8DC6F685-2230-4560-BFEA-A2231C0A6C1A\"}]}]}],\"references\":[{\"url\":\"https://developer.arm.com/support/arm-security-updates\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://developer.arm.com/support/arm-security-updates\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…