CVE-2025-2173 (GCVE-0-2025-2173)
Vulnerability from cvelistv5 – Published: 2025-03-11 06:31 – Updated: 2025-03-11 13:47
VLAI
EPSS
VEX
Title
libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer
Summary
A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.
Severity
5.3 (Medium)
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-11 13:46 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.299202 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.299202 | signaturepermissions-required |
| https://vuldb.com/?submit.512798 | third-party-advisory |
| https://github.com/zapping-vbi/zvbi/security/advi… | related |
| https://github.com/zapping-vbi/zvbi/commit/8def64… | patch |
| https://github.com/zapping-vbi/zvbi/releases/tag/… | patch |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | libzvbi |
Affected:
0.2.0
Affected: 0.2.1 Affected: 0.2.2 Affected: 0.2.3 Affected: 0.2.4 Affected: 0.2.5 Affected: 0.2.6 Affected: 0.2.7 Affected: 0.2.8 Affected: 0.2.9 Affected: 0.2.10 Affected: 0.2.11 Affected: 0.2.12 Affected: 0.2.13 Affected: 0.2.14 Affected: 0.2.15 Affected: 0.2.16 Affected: 0.2.17 Affected: 0.2.18 Affected: 0.2.19 Affected: 0.2.20 Affected: 0.2.21 Affected: 0.2.22 Affected: 0.2.23 Affected: 0.2.24 Affected: 0.2.25 Affected: 0.2.26 Affected: 0.2.27 Affected: 0.2.28 Affected: 0.2.29 Affected: 0.2.30 Affected: 0.2.31 Affected: 0.2.32 Affected: 0.2.33 Affected: 0.2.34 Affected: 0.2.35 Affected: 0.2.36 Affected: 0.2.37 Affected: 0.2.38 Affected: 0.2.39 Affected: 0.2.40 Affected: 0.2.41 Affected: 0.2.42 Affected: 0.2.43 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-2173",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-11T13:46:53.127947Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T13:47:03.081Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "libzvbi",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "0.2.0"
},
{
"status": "affected",
"version": "0.2.1"
},
{
"status": "affected",
"version": "0.2.2"
},
{
"status": "affected",
"version": "0.2.3"
},
{
"status": "affected",
"version": "0.2.4"
},
{
"status": "affected",
"version": "0.2.5"
},
{
"status": "affected",
"version": "0.2.6"
},
{
"status": "affected",
"version": "0.2.7"
},
{
"status": "affected",
"version": "0.2.8"
},
{
"status": "affected",
"version": "0.2.9"
},
{
"status": "affected",
"version": "0.2.10"
},
{
"status": "affected",
"version": "0.2.11"
},
{
"status": "affected",
"version": "0.2.12"
},
{
"status": "affected",
"version": "0.2.13"
},
{
"status": "affected",
"version": "0.2.14"
},
{
"status": "affected",
"version": "0.2.15"
},
{
"status": "affected",
"version": "0.2.16"
},
{
"status": "affected",
"version": "0.2.17"
},
{
"status": "affected",
"version": "0.2.18"
},
{
"status": "affected",
"version": "0.2.19"
},
{
"status": "affected",
"version": "0.2.20"
},
{
"status": "affected",
"version": "0.2.21"
},
{
"status": "affected",
"version": "0.2.22"
},
{
"status": "affected",
"version": "0.2.23"
},
{
"status": "affected",
"version": "0.2.24"
},
{
"status": "affected",
"version": "0.2.25"
},
{
"status": "affected",
"version": "0.2.26"
},
{
"status": "affected",
"version": "0.2.27"
},
{
"status": "affected",
"version": "0.2.28"
},
{
"status": "affected",
"version": "0.2.29"
},
{
"status": "affected",
"version": "0.2.30"
},
{
"status": "affected",
"version": "0.2.31"
},
{
"status": "affected",
"version": "0.2.32"
},
{
"status": "affected",
"version": "0.2.33"
},
{
"status": "affected",
"version": "0.2.34"
},
{
"status": "affected",
"version": "0.2.35"
},
{
"status": "affected",
"version": "0.2.36"
},
{
"status": "affected",
"version": "0.2.37"
},
{
"status": "affected",
"version": "0.2.38"
},
{
"status": "affected",
"version": "0.2.39"
},
{
"status": "affected",
"version": "0.2.40"
},
{
"status": "affected",
"version": "0.2.41"
},
{
"status": "affected",
"version": "0.2.42"
},
{
"status": "affected",
"version": "0.2.43"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "ninpwn (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional."
},
{
"lang": "de",
"value": "Es wurde eine problematische Schwachstelle in libzvbi bis 0.2.43 ausgemacht. Es geht dabei um die Funktion vbi_strndup_iconv_ucs2 der Datei src/conv.c. Mit der Manipulation des Arguments src_length mit unbekannten Daten kann eine uninitialized pointer-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung. Ein Aktualisieren auf die Version 0.2.44 vermag dieses Problem zu l\u00f6sen. Der Patch wird als 8def647eea27f7fd7ad33ff79c2d6d3e39948dce bezeichnet. Als bestm\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-824",
"description": "Uninitialized Pointer",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-908",
"description": "Uninitialized Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T06:31:05.166Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-299202 | libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.299202"
},
{
"name": "VDB-299202 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.299202"
},
{
"name": "Submit #512798 | Open Source libzvbi 0.2.43 Unitinialized Heap Read",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.512798"
},
{
"tags": [
"related"
],
"url": "https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf"
},
{
"tags": [
"patch"
],
"url": "https://github.com/zapping-vbi/zvbi/commit/8def647eea27f7fd7ad33ff79c2d6d3e39948dce"
},
{
"tags": [
"patch"
],
"url": "https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-03-11T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-03-11T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-03-11T07:18:06.000Z",
"value": "VulDB entry last update"
}
],
"title": "libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-2173",
"datePublished": "2025-03-11T06:31:05.166Z",
"dateReserved": "2025-03-10T17:26:53.636Z",
"dateUpdated": "2025-03-11T13:47:03.081Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-2173",
"date": "2026-11-07",
"epss": "0.00615",
"percentile": "0.49715"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "libzvbi",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "0.2.0"
},
{
"status": "affected",
"version": "0.2.1"
},
{
"status": "affected",
"version": "0.2.2"
},
{
"status": "affected",
"version": "0.2.3"
},
{
"status": "affected",
"version": "0.2.4"
},
{
"status": "affected",
"version": "0.2.5"
},
{
"status": "affected",
"version": "0.2.6"
},
{
"status": "affected",
"version": "0.2.7"
},
{
"status": "affected",
"version": "0.2.8"
},
{
"status": "affected",
"version": "0.2.9"
},
{
"status": "affected",
"version": "0.2.10"
},
{
"status": "affected",
"version": "0.2.11"
},
{
"status": "affected",
"version": "0.2.12"
},
{
"status": "affected",
"version": "0.2.13"
},
{
"status": "affected",
"version": "0.2.14"
},
{
"status": "affected",
"version": "0.2.15"
},
{
"status": "affected",
"version": "0.2.16"
},
{
"status": "affected",
"version": "0.2.17"
},
{
"status": "affected",
"version": "0.2.18"
},
{
"status": "affected",
"version": "0.2.19"
},
{
"status": "affected",
"version": "0.2.20"
},
{
"status": "affected",
"version": "0.2.21"
},
{
"status": "affected",
"version": "0.2.22"
},
{
"status": "affected",
"version": "0.2.23"
},
{
"status": "affected",
"version": "0.2.24"
},
{
"status": "affected",
"version": "0.2.25"
},
{
"status": "affected",
"version": "0.2.26"
},
{
"status": "affected",
"version": "0.2.27"
},
{
"status": "affected",
"version": "0.2.28"
},
{
"status": "affected",
"version": "0.2.29"
},
{
"status": "affected",
"version": "0.2.30"
},
{
"status": "affected",
"version": "0.2.31"
},
{
"status": "affected",
"version": "0.2.32"
},
{
"status": "affected",
"version": "0.2.33"
},
{
"status": "affected",
"version": "0.2.34"
},
{
"status": "affected",
"version": "0.2.35"
},
{
"status": "affected",
"version": "0.2.36"
},
{
"status": "affected",
"version": "0.2.37"
},
{
"status": "affected",
"version": "0.2.38"
},
{
"status": "affected",
"version": "0.2.39"
},
{
"status": "affected",
"version": "0.2.40"
},
{
"status": "affected",
"version": "0.2.41"
},
{
"status": "affected",
"version": "0.2.42"
},
{
"status": "affected",
"version": "0.2.43"
}
]
}
],
"source": "cna@vuldb.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zapping-vbi:zvbi:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2A797D3C-8334-46CA-9503-C6B145649870",
"versionEndExcluding": "0.2.44",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional."
},
{
"lang": "es",
"value": "Se ha encontrado una vulnerabilidad en libzvbi hasta la versi\u00f3n 0.2.43. Se ha clasificado como problem\u00e1tica. La funci\u00f3n vbi_strndup_iconv_ucs2 del archivo src/conv.c est\u00e1 afectada. La manipulaci\u00f3n del argumento src_length da lugar a un puntero no inicializado. Es posible lanzar el ataque de forma remota. El exploit se ha hecho p\u00fablico y puede utilizarse. La actualizaci\u00f3n a la versi\u00f3n 0.2.44 puede solucionar este problema. El parche se identifica como 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. Se recomienda actualizar el componente afectado. La responsable del c\u00f3digo fue informada de antemano sobre los problemas. Reaccion\u00f3 muy r\u00e1pido y con gran profesionalidad."
}
],
"id": "CVE-2025-2173",
"lastModified": "2026-06-17T09:06:27.923",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "cna@vuldb.com",
"type": "Secondary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "cna@vuldb.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "cna@vuldb.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-2173",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-11T13:46:53.127947Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-03-11T07:15:36.057",
"references": [
{
"source": "cna@vuldb.com",
"tags": [
"Patch"
],
"url": "https://github.com/zapping-vbi/zvbi/commit/8def647eea27f7fd7ad33ff79c2d6d3e39948dce"
},
{
"source": "cna@vuldb.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44"
},
{
"source": "cna@vuldb.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf"
},
{
"source": "cna@vuldb.com",
"tags": [
"Permissions Required",
"VDB Entry"
],
"url": "https://vuldb.com/?ctiid.299202"
},
{
"source": "cna@vuldb.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://vuldb.com/?id.299202"
},
{
"source": "cna@vuldb.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://vuldb.com/?submit.512798"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-824"
},
{
"lang": "en",
"value": "CWE-908"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-824"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T17:34:07+00:00",
"cve": "CVE-2025-2173",
"id": "CVE-2025-2173",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-2173.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-2173",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-11T13:46:53.127947Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T13:46:58.847Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "libzvbi",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "0.2.0"
},
{
"status": "affected",
"version": "0.2.1"
},
{
"status": "affected",
"version": "0.2.2"
},
{
"status": "affected",
"version": "0.2.3"
},
{
"status": "affected",
"version": "0.2.4"
},
{
"status": "affected",
"version": "0.2.5"
},
{
"status": "affected",
"version": "0.2.6"
},
{
"status": "affected",
"version": "0.2.7"
},
{
"status": "affected",
"version": "0.2.8"
},
{
"status": "affected",
"version": "0.2.9"
},
{
"status": "affected",
"version": "0.2.10"
},
{
"status": "affected",
"version": "0.2.11"
},
{
"status": "affected",
"version": "0.2.12"
},
{
"status": "affected",
"version": "0.2.13"
},
{
"status": "affected",
"version": "0.2.14"
},
{
"status": "affected",
"version": "0.2.15"
},
{
"status": "affected",
"version": "0.2.16"
},
{
"status": "affected",
"version": "0.2.17"
},
{
"status": "affected",
"version": "0.2.18"
},
{
"status": "affected",
"version": "0.2.19"
},
{
"status": "affected",
"version": "0.2.20"
},
{
"status": "affected",
"version": "0.2.21"
},
{
"status": "affected",
"version": "0.2.22"
},
{
"status": "affected",
"version": "0.2.23"
},
{
"status": "affected",
"version": "0.2.24"
},
{
"status": "affected",
"version": "0.2.25"
},
{
"status": "affected",
"version": "0.2.26"
},
{
"status": "affected",
"version": "0.2.27"
},
{
"status": "affected",
"version": "0.2.28"
},
{
"status": "affected",
"version": "0.2.29"
},
{
"status": "affected",
"version": "0.2.30"
},
{
"status": "affected",
"version": "0.2.31"
},
{
"status": "affected",
"version": "0.2.32"
},
{
"status": "affected",
"version": "0.2.33"
},
{
"status": "affected",
"version": "0.2.34"
},
{
"status": "affected",
"version": "0.2.35"
},
{
"status": "affected",
"version": "0.2.36"
},
{
"status": "affected",
"version": "0.2.37"
},
{
"status": "affected",
"version": "0.2.38"
},
{
"status": "affected",
"version": "0.2.39"
},
{
"status": "affected",
"version": "0.2.40"
},
{
"status": "affected",
"version": "0.2.41"
},
{
"status": "affected",
"version": "0.2.42"
},
{
"status": "affected",
"version": "0.2.43"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "ninpwn (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in libzvbi up to 0.2.43. It has been classified as problematic. Affected is the function vbi_strndup_iconv_ucs2 of the file src/conv.c. The manipulation of the argument src_length leads to uninitialized pointer. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The patch is identified as 8def647eea27f7fd7ad33ff79c2d6d3e39948dce. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional."
},
{
"lang": "de",
"value": "Es wurde eine problematische Schwachstelle in libzvbi bis 0.2.43 ausgemacht. Es geht dabei um die Funktion vbi_strndup_iconv_ucs2 der Datei src/conv.c. Mit der Manipulation des Arguments src_length mit unbekannten Daten kann eine uninitialized pointer-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung. Ein Aktualisieren auf die Version 0.2.44 vermag dieses Problem zu l\u00f6sen. Der Patch wird als 8def647eea27f7fd7ad33ff79c2d6d3e39948dce bezeichnet. Als bestm\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-824",
"description": "Uninitialized Pointer",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-908",
"description": "Uninitialized Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-11T06:31:05.166Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-299202 | libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.299202"
},
{
"name": "VDB-299202 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.299202"
},
{
"name": "Submit #512798 | Open Source libzvbi 0.2.43 Unitinialized Heap Read",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.512798"
},
{
"tags": [
"related"
],
"url": "https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf"
},
{
"tags": [
"patch"
],
"url": "https://github.com/zapping-vbi/zvbi/commit/8def647eea27f7fd7ad33ff79c2d6d3e39948dce"
},
{
"tags": [
"patch"
],
"url": "https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-03-11T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-03-11T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-03-11T07:18:06.000Z",
"value": "VulDB entry last update"
}
],
"title": "libzvbi conv.c vbi_strndup_iconv_ucs2 uninitialized pointer"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-2173",
"datePublished": "2025-03-11T06:31:05.166Z",
"dateReserved": "2025-03-10T17:26:53.636Z",
"dateUpdated": "2025-03-11T13:47:03.081Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.