FKIE_CVE-2001-1180

Vulnerability from fkie_nvd - Published: 2001-07-10 04:00 - Updated: 2026-06-16 21:55
Severity
Summary
FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.
References
cve@mitre.orgftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc
cve@mitre.orghttp://archives.neohapsis.com/archives/bugtraq/2001-07/0179.htmlExploit, Patch, Vendor Advisory
cve@mitre.orghttp://ciac.llnl.gov/ciac/bulletins/l-111.shtml
cve@mitre.orghttp://www.kb.cert.org/vuls/id/943633Patch, Third Party Advisory, US Government Resource
cve@mitre.orghttp://www.osvdb.org/1897
cve@mitre.orghttp://www.securityfocus.com/bid/3007Exploit, Patch, Vendor Advisory
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/6829
af854a3a-2127-422b-91ae-364da2661108ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.htmlExploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://ciac.llnl.gov/ciac/bulletins/l-111.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/943633Patch, Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/1897
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/3007Exploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6829
Impacted products
Vendor Product Version
freebsd freebsd 4.0
freebsd freebsd 4.1
freebsd freebsd 4.2
freebsd freebsd 4.3
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D0A585A1-FF82-418F-90F8-072458DB7816",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE31DFF8-06AB-489D-A0C5-509C090283B5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF49BF03-C25E-4737-84D5-892895C86C58",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "D2019E0E-426B-43AF-8904-1B811AE171E8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child."
    }
  ],
  "id": "CVE-2001-1180",
  "lastModified": "2026-06-16T21:55:44.423",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": true,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2001-07-10T04:00:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://ciac.llnl.gov/ciac/bulletins/l-111.shtml"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/943633"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.osvdb.org/1897"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.securityfocus.com/bid/3007"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6829"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://ciac.llnl.gov/ciac/bulletins/l-111.shtml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/943633"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.osvdb.org/1897"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.securityfocus.com/bid/3007"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6829"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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