FKIE_CVE-2023-24626

Vulnerability from fkie_nvd - Published: 2023-04-08 05:15 - Updated: 2025-05-09 20:15
Severity ?
6.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process.
References
cve@mitre.orghttps://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7Mailing List, Patch
cve@mitre.orghttps://savannah.gnu.org/bugs/?63195Permissions Required
cve@mitre.orghttps://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://savannah.gnu.org/bugs/?63195Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250509-0003/
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.exploit-db.com/exploits/51252Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
gnu screen *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1DD0174-2A76-482F-964D-0DD75126F9E8",
              "versionEndIncluding": "4.9.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process."
    }
  ],
  "id": "CVE-2023-24626",
  "lastModified": "2025-05-09T20:15:37.510",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2023-04-08T05:15:07.063",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://savannah.gnu.org/bugs/?63195"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/51252"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "https://git.savannah.gnu.org/cgit/screen.git/patch/?id=e9ad41bfedb4537a6f0de20f00b27c7739f168f7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://savannah.gnu.org/bugs/?63195"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.netapp.com/advisory/ntap-20250509-0003/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/51252"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/51252"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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