{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-54581", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-07-25T16:19:16.093Z", "datePublished": "2025-07-30T19:57:46.454Z", "dateUpdated": "2025-07-30T20:23:36.826Z"}, "containers": {"cna": {"title": "vproxy is vulnerable to a divide by zero DoS attack", "problemTypes": [{"descriptions": [{"cweId": "CWE-369", "lang": "en", "description": "CWE-369: Divide By Zero", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "references": [{"name": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c"}, {"name": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079", "tags": ["x_refsource_MISC"], "url": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079"}, {"name": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0"}], "affected": [{"vendor": "0x676e67", "product": "vproxy", "versions": [{"version": "< 2.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-07-30T19:57:46.454Z"}, "descriptions": [{"lang": "en", "value": "vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as 'configuredUser-ttl-0'), the modulo operation 'timestamp % ttl' will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0."}], "source": {"advisory": "GHSA-7h24-c332-p48c", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-07-30T20:13:38.841221Z", "id": "CVE-2025-54581", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-30T20:23:36.826Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as 'configuredUser-ttl-0'), the modulo operation 'timestamp % ttl' will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0."}, {"lang": "es", "value": "vproxy es un servidor proxy HTTP/HTTPS/SOCKS5. En las versiones 2.3.3 y anteriores, los datos no confiables se extraen del encabezado HTTP Proxy-Authorization, controlado por el usuario, se pasan a Extension::try_from y fluyen a parse_ttl_extension, donde se analizan como un valor TTL. Si un atacante proporciona un valor TTL de cero (por ejemplo, usando un nombre de usuario como 'configuredUser-ttl-0'), la operaci\u00f3n de m\u00f3dulo 'timestamp % ttl' provocar\u00e1 un p\u00e1nico por divisi\u00f3n por cero, lo que provocar\u00e1 el bloqueo del servidor y una denegaci\u00f3n de servicio. Esto se solucion\u00f3 en la versi\u00f3n 2.4.0."}], "id": "CVE-2025-54581", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"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": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-07-30T20:15:37.907", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079"}, {"source": "security-advisories@github.com", "url": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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