CVE-2023-21216

View on CVE.org

Published Dec 4, 2023 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Description

In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Google

Android

unaffected

Version	Status	Constraints
`Android SoC`	affected	—

Configuration 1 [-]

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-25384	In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.398% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://source.android.com/security/bulletin/2023-12-01

History

May 29, 2025 2:15 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-276
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Google Android

Weaknesses

Sources

CVE record Updated: May 29, 2025, 1:49 PM

Status: PUBLISHED
Assigner: google_android
Published: Dec 4, 2023, 10:40 PM
Updated: May 29, 2025, 1:49 PM
Reserved: Nov 3, 2022, 10:37 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 9:28 AM

Updated: Aug 2, 2024, 9:28 AM

NVD Updated: Jun 17, 2026, 5:32 AM

Status: Modified
Published: Dec 4, 2023, 11:15 PM
Modified: Jun 17, 2026, 5:32 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-21216", "assignerOrgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "state": "PUBLISHED", "assignerShortName": "google_android", "dateReserved": "2022-11-03T22:37:50.647Z", "datePublished": "2023-12-04T22:40:47.608Z", "dateUpdated": "2025-05-29T13:49:46.575Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "shortName": "google_android", "dateUpdated": "2023-12-22T00:16:39.304Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "description": "Elevation of privilege"}]}], "affected": [{"vendor": "Google", "product": "Android", "versions": [{"version": "Android SoC", "status": "affected"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation."}], "references": [{"url": "https://source.android.com/security/bulletin/2023-12-01"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:28:26.203Z"}, "title": "CVE Program Container", "references": [{"url": "https://source.android.com/security/bulletin/2023-12-01", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-276", "lang": "en", "description": "CWE-276 Incorrect Default Permissions"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-05-29T13:49:03.355717Z", "id": "CVE-2023-21216", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-29T13:49:46.575Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://source.android.com/security/bulletin/2023-12-01", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:28:26.203Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-21216", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-05-29T13:49:03.355717Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-276", "description": "CWE-276 Incorrect Default Permissions"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-29T13:49:27.638Z"}}], "cna": {"affected": [{"vendor": "Google", "product": "Android", "versions": [{"status": "affected", "version": "Android SoC"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://source.android.com/security/bulletin/2023-12-01"}], "descriptions": [{"lang": "en", "value": "In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Elevation of privilege"}]}], "providerMetadata": {"orgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "shortName": "google_android", "dateUpdated": "2023-12-22T00:16:39.304Z"}}}, "cveMetadata": {"cveId": "CVE-2023-21216", "state": "PUBLISHED", "dateUpdated": "2025-05-29T13:49:46.575Z", "dateReserved": "2022-11-03T22:37:50.647Z", "assignerOrgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "datePublished": "2023-12-04T22:40:47.608Z", "assignerShortName": "google_android"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Android", "vendor": "Google", "versions": [{"status": "affected", "version": "Android SoC"}]}], "source": "security@android.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation."}, {"lang": "es", "value": "Hay elevaci\u00f3n de privilegios."}], "id": "CVE-2023-21216", "lastModified": "2026-06-17T05:32:05.980", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-21216", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-05-29T13:49:03.355717Z", "version": "2.0.3"}}]}, "published": "2023-12-04T23:15:22.570", "references": [{"source": "security@android.com", "tags": ["Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2023-12-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2023-12-01"}], "sourceIdentifier": "security@android.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-276"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}