CVE-2021-3889 - Vulnerability Details - OpenCVE

libmobi is vulnerable to Use of Out-of-range Pointer Offset

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Libmobi Project	Libmobi

Configuration 1 [-]

cpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21
https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516

History

Sun, 13 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00088}`	epss `{'score': 0.0026}`

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-10-19T12:30:38

Updated: 2024-08-03T17:09:09.609Z

Reserved: 2021-10-15T00:00:00

Link: CVE-2021-3889

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-10-19T13:15:11.977

Modified: 2024-11-21T06:22:43.107

Link: CVE-2021-3889

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "bfabiszewski/libmobi", "vendor": "bfabiszewski", "versions": [{"lessThan": "0.8", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "libmobi is vulnerable to Use of Out-of-range Pointer Offset"}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-823", "description": "CWE-823 Use of Out-of-range Pointer Offset", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-10-19T12:30:38", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516"}], "source": {"advisory": "efb3e261-3f7d-4a45-8114-e0ace6b21516", "discovery": "EXTERNAL"}, "title": "Use of Out-of-range Pointer Offset in bfabiszewski/libmobi", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-3889", "STATE": "PUBLIC", "TITLE": "Use of Out-of-range Pointer Offset in bfabiszewski/libmobi"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "bfabiszewski/libmobi", "version": {"version_data": [{"version_affected": "<", "version_value": "0.8"}]}}]}, "vendor_name": "bfabiszewski"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "libmobi is vulnerable to Use of Out-of-range Pointer Offset"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-823 Use of Out-of-range Pointer Offset"}]}]}, "references": {"reference_data": [{"name": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21", "refsource": "MISC", "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"}, {"name": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516"}]}, "source": {"advisory": "efb3e261-3f7d-4a45-8114-e0ace6b21516", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.609Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-3889", "datePublished": "2021-10-19T12:30:38", "dateReserved": "2021-10-15T00:00:00", "dateUpdated": "2024-08-03T17:09:09.609Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*", "matchCriteriaId": "FB9BADF8-3FCF-4B8B-8161-00A450C9789A", "versionEndExcluding": "0.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "libmobi is vulnerable to Use of Out-of-range Pointer Offset"}, {"lang": "es", "value": "libmobi es vulnerable a un Uso de Punteros Fuera de Rango"}], "id": "CVE-2021-3889", "lastModified": "2024-11-21T06:22:43.107", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.7, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-19T13:15:11.977", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/efb3e261-3f7d-4a45-8114-e0ace6b21516"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-823"}], "source": "security@huntr.dev", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}