fkie_cve-2025-58369
Vulnerability from fkie_nvd
Published
2025-09-05 22:15
Modified
2025-11-07 12:15
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
fs2 is a compositional, streaming I/O library for Scala. Versions up to and including 2.5.12, 3.0.0-M1 through 3.12.2, and 3.13.0-M1 through 3.13.0-M6 are 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 2.5.13, 3.12.1, and 3.13.0-M7.
References
security-advisories@github.comhttps://github.com/typelevel/fs2/commit/46e2dc3abf994dcf3d0b804b2ddb3c10c04d4976
security-advisories@github.comhttps://github.com/typelevel/fs2/commit/5c6c4c6c1ef330f7e6b53661ecc63d5f5ba8885c
security-advisories@github.comhttps://github.com/typelevel/fs2/commit/edf0c4f2e660360d1c1a8c5377ce32294de89238
security-advisories@github.comhttps://github.com/typelevel/fs2/issues/3590
security-advisories@github.comhttps://github.com/typelevel/fs2/releases/tag/v3.12.2
security-advisories@github.comhttps://github.com/typelevel/fs2/releases/tag/v3.13.0-M7
security-advisories@github.comhttps://github.com/typelevel/fs2/security/advisories/GHSA-rrw2-px9j-qffj
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "fs2 is a compositional, streaming I/O library for Scala. Versions up to and including 2.5.12, 3.0.0-M1 through 3.12.2, and 3.13.0-M1 through 3.13.0-M6 are 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  2.5.13, 3.12.1, and 3.13.0-M7."
    }
  ],
  "id": "CVE-2025-58369",
  "lastModified": "2025-11-07T12:15:34.797",
  "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/commit/edf0c4f2e660360d1c1a8c5377ce32294de89238"
    },
    {
      "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": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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