{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-58369", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-08-29T16:19:59.012Z", "datePublished": "2025-09-05T21:59:58.981Z", "dateUpdated": "2025-09-05T21:59:58.981Z"}, "containers": {"cna": {"title": "fs2: Half-shutdown of socket during TLS handshake may result in spin loop on opposite side", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}}], "references": [{"name": "https://github.com/typelevel/fs2/security/advisories/GHSA-rrw2-px9j-qffj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/typelevel/fs2/security/advisories/GHSA-rrw2-px9j-qffj"}, {"name": "https://github.com/typelevel/fs2/issues/3590", "tags": ["x_refsource_MISC"], "url": "https://github.com/typelevel/fs2/issues/3590"}, {"name": "https://github.com/typelevel/fs2/commit/46e2dc3abf994dcf3d0b804b2ddb3c10c04d4976", "tags": ["x_refsource_MISC"], "url": "https://github.com/typelevel/fs2/commit/46e2dc3abf994dcf3d0b804b2ddb3c10c04d4976"}, {"name": "https://github.com/typelevel/fs2/commit/5c6c4c6c1ef330f7e6b53661ecc63d5f5ba8885c", "tags": ["x_refsource_MISC"], "url": "https://github.com/typelevel/fs2/commit/5c6c4c6c1ef330f7e6b53661ecc63d5f5ba8885c"}, {"name": "https://github.com/typelevel/fs2/releases/tag/v3.12.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/typelevel/fs2/releases/tag/v3.12.2"}, {"name": "https://github.com/typelevel/fs2/releases/tag/v3.13.0-M7", "tags": ["x_refsource_MISC"], "url": "https://github.com/typelevel/fs2/releases/tag/v3.13.0-M7"}], "affected": [{"vendor": "typelevel", "product": "fs2", "versions": [{"version": "< 3.12.2", "status": "affected"}, {"version": ">= 3.13.0-M1, < 3.13.0-M7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-09-05T21:59:58.981Z"}, "descriptions": [{"lang": "en", "value": "fs2 is a compositional, streaming I/O library for Scala. Versions 3.12.2 and lower and 3.13.0-M1 through 3.13.0-M6 is vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing a TLS session, if one side of the connection shuts down `write` while the peer side is awaiting more data to progress the TLS handshake, the peer side will spin loop on the socket read, fully utilizing a CPU. The CPU is consumed until the overall connection is closed, potentially shutting down a fs2-io powered server. This issue is fixed in versions 3.12.1 and 3.13.0-M7."}], "source": {"advisory": "GHSA-rrw2-px9j-qffj", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "fs2 is a compositional, streaming I/O library for Scala. Versions 3.12.2 and lower and 3.13.0-M1 through 3.13.0-M6 is vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing a TLS session, if one side of the connection shuts down `write` while the peer side is awaiting more data to progress the TLS handshake, the peer side will spin loop on the socket read, fully utilizing a CPU. The CPU is consumed until the overall connection is closed, potentially shutting down a fs2-io powered server. This issue is fixed in versions 3.12.1 and 3.13.0-M7."}], "id": "CVE-2025-58369", "lastModified": "2025-09-05T22:15:34.883", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-09-05T22:15:34.883", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/commit/46e2dc3abf994dcf3d0b804b2ddb3c10c04d4976"}, {"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/commit/5c6c4c6c1ef330f7e6b53661ecc63d5f5ba8885c"}, {"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/issues/3590"}, {"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/releases/tag/v3.12.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/releases/tag/v3.13.0-M7"}, {"source": "security-advisories@github.com", "url": "https://github.com/typelevel/fs2/security/advisories/GHSA-rrw2-px9j-qffj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}