Vulnerability-Lookup

CNVD-2021-29113

Vulnerability from cnvd - Published: 2021-04-18

Title

FreeBSD权限提升漏洞（CNVD-2021-29113）

Description

FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD 存在安全漏洞，该漏洞源于错误地释放了进程提供的参数字符串。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

FreeBSD权限提升漏洞（CNVD-2021-29113）的补丁

Patch Description

FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD 存在安全漏洞，该漏洞源于错误地释放了进程提供的参数字符串。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.freebsd.org/security/advisories/FreeBSD-SA-21:09.accept_filter.asc

Reference

https://exchange.xforce.ibmcloud.com/vulnerabilities/199694

Impacted products

Name
['FreeBSD FreeBSD', 'FreeBSD Freebsd >=12.0，<12.2', 'FreeBSD Freebsd 12.2', 'FreeBSD Freebsd 12.2 p1', 'FreeBSD Freebsd 12.2 p2', 'FreeBSD Freebsd 13.0 beta1', 'FreeBSD Freebsd 13.0 beta2', 'FreeBSD Freebsd 13.0 beta3', 'FreeBSD Freebsd 13.0 beta4', 'FreeBSD Freebsd 13.0 rc1', 'FreeBSD Freebsd 13.0 rc2', 'FreeBSD Freebsd 13.0 rc3']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-29627"
    }
  },
  "description": "FreeBSD\u662fFreebsd\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002 \n\nFreeBSD \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u5730\u91ca\u653e\u4e86\u8fdb\u7a0b\u63d0\u4f9b\u7684\u53c2\u6570\u5b57\u7b26\u4e32\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.freebsd.org/security/advisories/FreeBSD-SA-21:09.accept_filter.asc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-29113",
  "openTime": "2021-04-18",
  "patchDescription": "FreeBSD\u662fFreebsd\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002 \r\n\r\nFreeBSD \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u5730\u91ca\u653e\u4e86\u8fdb\u7a0b\u63d0\u4f9b\u7684\u53c2\u6570\u5b57\u7b26\u4e32\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "FreeBSD\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-29113\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "FreeBSD FreeBSD",
      "FreeBSD Freebsd \u003e=12.0\uff0c\u003c12.2",
      "FreeBSD Freebsd 12.2",
      "FreeBSD Freebsd 12.2 p1",
      "FreeBSD Freebsd 12.2 p2",
      "FreeBSD Freebsd 13.0 beta1",
      "FreeBSD Freebsd 13.0 beta2",
      "FreeBSD Freebsd 13.0 beta3",
      "FreeBSD Freebsd 13.0 beta4",
      "FreeBSD Freebsd 13.0 rc1",
      "FreeBSD Freebsd 13.0 rc2",
      "FreeBSD Freebsd 13.0 rc3"
    ]
  },
  "referenceLink": "https://exchange.xforce.ibmcloud.com/vulnerabilities/199694",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-12",
  "title": "FreeBSD\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-29113\uff09"
}

CVE-2021-29627 (GCVE-0-2021-29627)

Vulnerability from cvelistv5 – Published: 2021-04-07 14:45 – Updated: 2024-08-03 22:11

Summary

In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free.

Severity ?

No CVSS data available.

CWE

Double free or use after free

Assigner

freebsd

References

URL

Tags

	https://security.FreeBSD.org/advisories/FreeBSD-S…	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021042…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	FreeBSD	Affected: FreeBSD 12.2-RELEASE before p6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:11:06.343Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210423-0007/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeBSD",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 12.2-RELEASE before p6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Double free or use after free",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-23T05:06:21.000Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210423-0007/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secteam@freebsd.org",
          "ID": "CVE-2021-29627",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "FreeBSD",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FreeBSD 12.2-RELEASE before p6"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Double free or use after free"
                }
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            }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc",
              "refsource": "MISC",
              "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210423-0007/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210423-0007/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2021-29627",
    "datePublished": "2021-04-07T14:45:52.000Z",
    "dateReserved": "2021-03-30T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:11:06.343Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-29113

CVE-2021-29627 (GCVE-0-2021-29627)

Tags

Sightings

Nomenclature