CVE-2021-22556 (GCVE-0-2021-22556)
Vulnerability from cvelistv5 – Published: 2022-05-03 15:50 – Updated: 2025-04-21 13:54
VLAI?
Title
Integer Overflow in Fuchsia Kernel
Summary
The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don’t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.
Severity ?
5.3 (Medium)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Google LLC | Fuchsia Kernel |
Affected:
unspecified , < 4.1
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T18:44:13.719Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://fuchsia.dev/whats-new/release-notes/f4-1"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://fuchsia-review.googlesource.com/c/fuchsia/+/570881"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-22556",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-21T13:36:25.693251Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-04-21T13:54:07.544Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Fuchsia Kernel",
"vendor": "Google LLC",
"versions": [
{
"lessThan": "4.1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\u2019t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-05-03T15:50:11.000Z",
"orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"shortName": "Google"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://fuchsia.dev/whats-new/release-notes/f4-1"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://fuchsia-review.googlesource.com/c/fuchsia/+/570881"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Integer Overflow in Fuchsia Kernel",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@google.com",
"ID": "CVE-2021-22556",
"STATE": "PUBLIC",
"TITLE": "Integer Overflow in Fuchsia Kernel"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Fuchsia Kernel",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "4.1"
}
]
}
}
]
},
"vendor_name": "Google LLC"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\u2019t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-190 Integer Overflow or Wraparound"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://fuchsia.dev/whats-new/release-notes/f4-1",
"refsource": "MISC",
"url": "https://fuchsia.dev/whats-new/release-notes/f4-1"
},
{
"name": "https://fuchsia-review.googlesource.com/c/fuchsia/+/570881",
"refsource": "MISC",
"url": "https://fuchsia-review.googlesource.com/c/fuchsia/+/570881"
}
]
},
"source": {
"discovery": "INTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"assignerShortName": "Google",
"cveId": "CVE-2021-22556",
"datePublished": "2022-05-03T15:50:11.000Z",
"dateReserved": "2021-01-05T00:00:00.000Z",
"dateUpdated": "2025-04-21T13:54:07.544Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://fuchsia.dev/whats-new/release-notes/f4-1\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://fuchsia-review.googlesource.com/c/fuchsia/+/570881\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T18:44:13.719Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-22556\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-21T13:36:25.693251Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-21T13:36:27.434Z\"}}], \"cna\": {\"title\": \"Integer Overflow in Fuchsia Kernel\", \"source\": {\"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Google LLC\", \"product\": \"Fuchsia Kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"4.1\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://fuchsia.dev/whats-new/release-notes/f4-1\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://fuchsia-review.googlesource.com/c/fuchsia/+/570881\", \"tags\": [\"x_refsource_MISC\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\\u2019t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-190\", \"description\": \"CWE-190 Integer Overflow or Wraparound\"}]}], \"providerMetadata\": {\"orgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"shortName\": \"Google\", \"dateUpdated\": \"2022-05-03T15:50:11.000Z\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, \"source\": {\"discovery\": \"INTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"4.1\", \"version_affected\": \"\u003c\"}]}, \"product_name\": \"Fuchsia Kernel\"}]}, \"vendor_name\": \"Google LLC\"}]}}, \"data_type\": \"CVE\", \"generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"references\": {\"reference_data\": [{\"url\": \"https://fuchsia.dev/whats-new/release-notes/f4-1\", \"name\": \"https://fuchsia.dev/whats-new/release-notes/f4-1\", \"refsource\": \"MISC\"}, {\"url\": \"https://fuchsia-review.googlesource.com/c/fuchsia/+/570881\", \"name\": \"https://fuchsia-review.googlesource.com/c/fuchsia/+/570881\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don\\u2019t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-190 Integer Overflow or Wraparound\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-22556\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Integer Overflow in Fuchsia Kernel\", \"ASSIGNER\": \"security@google.com\"}}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-22556\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-21T13:54:07.544Z\", \"dateReserved\": \"2021-01-05T00:00:00.000Z\", \"assignerOrgId\": \"14ed7db2-1595-443d-9d34-6215bf890778\", \"datePublished\": \"2022-05-03T15:50:11.000Z\", \"assignerShortName\": \"Google\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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…