github - ghsa-59w5-j22f-h3rv

ghsa-59w5-j22f-h3rv

Vulnerability from github

Published

2025-07-04 06:30

Modified

2025-07-04 06:30

Severity ?

5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Details

A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success—the function may mistakenly return a success status even when key derivation fails. This results in uninitialized cryptographic key buffers being used in subsequent communication, potentially compromising SSH sessions' confidentiality, integrity, and availability.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-5372"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-682"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-04T06:15:24Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success\u2014the function may mistakenly return a success status even when key derivation fails. This results in uninitialized cryptographic key buffers being used in subsequent communication, potentially compromising SSH sessions\u0027 confidentiality, integrity, and availability.",
  "id": "GHSA-59w5-j22f-h3rv",
  "modified": "2025-07-04T06:30:24Z",
  "published": "2025-07-04T06:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5372"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-5372"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369388"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

cve-2025-5372

Vulnerability from cvelistv5

Published

2025-07-04 06:01

Modified

2025-07-31 17:14

Severity ?

5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

Libssh: incorrect return code handling in ssh_kdf() in libssh

References

▼	URL	Tags
	https://access.redhat.com/security/cve/CVE-2025-5372	vdb-entry, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2369388	issue-tracking, x_refsource_REDHAT

Impacted products

▼	Vendor	Product
	Red Hat	Red Hat Enterprise Linux 10
	Red Hat	Red Hat Enterprise Linux 6
	Red Hat	Red Hat Enterprise Linux 7
	Red Hat	Red Hat Enterprise Linux 8
	Red Hat	Red Hat Enterprise Linux 9
	Red Hat	Red Hat OpenShift Container Platform 4

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  "containers": {
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2025-5372",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-08T14:08:57.301926Z",
                "version": "2.0.3"
              },
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-08T14:09:04.669Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "cpes": [
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          ],
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          "packageName": "libssh",
          "product": "Red Hat Enterprise Linux 10",
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        },
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          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "packageName": "libssh2",
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          "vendor": "Red Hat"
        },
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          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
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        },
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          "product": "Red Hat Enterprise Linux 9",
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        },
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          "cpes": [
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          "product": "Red Hat OpenShift Container Platform 4",
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      "datePublic": "2025-06-24T00:00:00.000Z",
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        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
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        {
          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
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      "problemTypes": [
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          "descriptions": [
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              "description": "Incorrect Calculation",
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              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-31T17:14:53.414Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
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            "x_refsource_REDHAT"
          ],
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        },
        {
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          ],
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          "time": "2025-05-30T11:26:05.731000+00:00",
          "value": "Reported to Red Hat."
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        {
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          "time": "2025-06-24T00:00:00+00:00",
          "value": "Made public."
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      ],
      "title": "Libssh: incorrect return code handling in ssh_kdf() in libssh",
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this issue, administrators should ensure that libssh is built against OpenSSL version 3.0 or later. This change eliminates the return code mismatch and prevents the erroneous use of uninitialized key material. It is also strongly recommended to apply vendor supplied patches or update to the latest libssh security release as soon as possible."
        }
      ],
      "x_redhatCweChain": "CWE-682: Incorrect Calculation"
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  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2025-5372",
    "datePublished": "2025-07-04T06:01:27.954Z",
    "dateReserved": "2025-05-30T11:22:02.534Z",
    "dateUpdated": "2025-07-31T17:14:53.414Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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