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CVE-2011-1935

Estado: ModificadaCrítica (9.8)—

pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote attackers to send arbitrary data while avoiding detection via crafted packets.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Tcpdump — Libpcap

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-1935",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-10-20T18:29:00.243",
  "references": [
    {
      "url": "http://article.gmane.org/gmane.network.tcpdump.devel/4968",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://thread.gmane.org/gmane.network.tcpdump.devel/5018",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/05/19/11",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2014/02/08/5",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1%3Bbug=623868%3Bfilename=0001-Fix-the-calculation-of-the-frame-size-in-memory-mapp.patch%3Bmsg=10",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=623868",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-1935/",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://article.gmane.org/gmane.network.tcpdump.devel/4968",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://thread.gmane.org/gmane.network.tcpdump.devel/5018",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2011/05/19/11",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2014/02/08/5",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1%3Bbug=623868%3Bfilename=0001-Fix-the-calculation-of-the-frame-size-in-memory-mapp.patch%3Bmsg=10",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=623868",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-1935/",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote attackers to send arbitrary data while avoiding detection via crafted packets."
    },
    {
      "lang": "es",
      "value": "pcap-linux.c en libpcap 1.1.1 antes del commit con ID ea9432fabdf4b33cbc76d9437200e028f1c47c93, cuando snaplen está establecido puede truncar paquetes, lo que podría permitir que atacantes remotos envíen datos arbitrarios evitando la detección mediante paquetes manipulados"
    }
  ],
  "lastModified": "2026-06-16T23:30:25.453",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F4E616F3-4975-4F3F-8232-AAA6CFC6D36E",
              "versionEndExcluding": "1.2.1",
              "versionStartIncluding": "1.1.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}