GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2020-28895 (GCVE-0-2020-28895)

Vulnerability from cvelistv5 – Published: 2021-02-03 15:16 – Updated: 2024-08-04 16:41
VLAI
Title
integer overflow in calloc
Summary
In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.
CWE
  • n/a
Date Public
2020-12-14 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:41:00.095Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Reported by Omri Ben Bassat \u003cv-obenbassat@microsoft.com\u003e"
        }
      ],
      "datePublic": "2020-12-14T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block\u0027s size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-04-19T23:22:39.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "integer overflow in calloc",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-28895",
          "STATE": "PUBLIC",
          "TITLE": "integer overflow in calloc"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Reported by Omri Ben Bassat \u003cv-obenbassat@microsoft.com\u003e"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block\u0027s size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327",
              "refsource": "MISC",
              "url": "https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327"
            },
            {
              "name": "https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895",
              "refsource": "MISC",
              "url": "https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-28895",
    "datePublished": "2021-02-03T15:16:34.000Z",
    "dateReserved": "2020-11-17T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:41:00.095Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-28895",
      "date": "2026-09-16",
      "epss": "0.01566",
      "percentile": "0.74051"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-28895\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-02-03T16:15:13.633\",\"lastModified\":\"2024-11-21T05:23:14.430\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block\u0027s size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.\"},{\"lang\":\"es\",\"value\":\"En Wind River VxWorks, el asignador de memoria presenta un posible desbordamiento en el calculo del tama\u00f1o del bloque de memoria que se asignar\u00e1 por medio de la funci\u00f3n calloc().\u0026#xa0;Como resultado, la memoria real asignada es menor que el tama\u00f1o del b\u00fafer especificado por los argumentos, conllevando a una corrupci\u00f3n en la memoria\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":3.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":3.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.9.4.12\",\"matchCriteriaId\":\"2E27E761-92D8-4A67-8D23-213E0C7BFFC6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:windriver:vxworks:6.9.4.12:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"69674D4D-2848-46BA-9367-7AA85EE2CD99\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:windriver:vxworks:6.9.4.12:rolling_cumulative_patch_layer1:*:*:*:*:*:*\",\"matchCriteriaId\":\"1052B8F5-1BC4-46B6-A8F1-F1BF9A40DDAF\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_eagle:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"46.8.0\",\"versionEndIncluding\":\"48.6.2\",\"matchCriteriaId\":\"1507EFE2-DA83-42D7-B075-91EE060B6B35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_eagle:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"46.9.1\",\"versionEndIncluding\":\"46.9.3\",\"matchCriteriaId\":\"4143A5F6-CD91-4209-A52B-98854CCAC987\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_eagle:46.7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9FED9166-7A2A-453D-9792-7A6361CEF594\"}]}]}],\"references\":[{\"url\":\"https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327\",\"source\":\"cve@mitre.org\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2022.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://support2.windriver.com/index.php?page=cve\u0026on=view\u0026id=CVE-2020-28895\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://support2.windriver.com/index.php?page=defects\u0026on=view\u0026id=V7LIBC-1327\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]}]}}"
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…