cnvd - cnvd-2021-25378

CNVD-2021-25378

Vulnerability from cnvd - Published: 2021-04-07

Title

uftpd空指针解引用漏洞

Description

uftpd是一款Linux FTP/TFTP服务器。 uftpd 2.12之前版本存在空指针解引用漏洞。该漏洞源于uftpd中的ftpcmd.c中的handle_CWD未能正确处理用户提供的路径。攻击者可通过CWD /..命令利用该漏洞导致拒绝服务。

Severity

中

Patch Name

uftpd空指针解引用漏洞的补丁

Patch Description

uftpd是一款Linux FTP/TFTP服务器。 uftpd 2.12之前版本存在空指针解引用漏洞。该漏洞源于uftpd中的ftpcmd.c中的handle_CWD未能正确处理用户提供的路径。攻击者可通过CWD /..命令利用该漏洞导致拒绝服务。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://github.com/troglobit/uftpd/releases/tag/v2.12

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-14149

Impacted products

Name
troglobit uftpd <2.12

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14149"
    }
  },
  "description": "uftpd\u662f\u4e00\u6b3eLinux FTP/TFTP\u670d\u52a1\u5668\u3002\n\nuftpd 2.12\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8euftpd\u4e2d\u7684ftpcmd.c\u4e2d\u7684handle_CWD\u672a\u80fd\u6b63\u786e\u5904\u7406\u7528\u6237\u63d0\u4f9b\u7684\u8def\u5f84\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7CWD /..\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1ahttps://github.com/troglobit/uftpd/releases/tag/v2.12",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-25378",
  "openTime": "2021-04-07",
  "patchDescription": "uftpd\u662f\u4e00\u6b3eLinux FTP/TFTP\u670d\u52a1\u5668\u3002\r\n\r\nuftpd 2.12\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8euftpd\u4e2d\u7684ftpcmd.c\u4e2d\u7684handle_CWD\u672a\u80fd\u6b63\u786e\u5904\u7406\u7528\u6237\u63d0\u4f9b\u7684\u8def\u5f84\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7CWD /..\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "uftpd\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "troglobit uftpd \u003c2.12"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14149",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-16",
  "title": "uftpd\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2020-14149 (GCVE-0-2020-14149)

Vulnerability from cvelistv5 – Published: 2020-06-15 16:52 – Updated: 2024-08-04 12:39

Summary

In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/troglobit/uftpd/issues/30	x_refsource_MISC
	https://bugs.gentoo.org/726308	x_refsource_MISC
	https://github.com/troglobit/uftpd/releases/tag/v2.12	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T12:39:36.017Z",
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              "x_transferred"
            ],
            "url": "https://github.com/troglobit/uftpd/issues/30"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.gentoo.org/726308"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/troglobit/uftpd/releases/tag/v2.12"
          },
          {
            "name": "openSUSE-SU-2020:0865",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00052.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "versions": [
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-25T17:06:06",
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      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/troglobit/uftpd/issues/30"
        },
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          ],
          "url": "https://bugs.gentoo.org/726308"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/troglobit/uftpd/releases/tag/v2.12"
        },
        {
          "name": "openSUSE-SU-2020:0865",
          "tags": [
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            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00052.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-14149",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                "vendor_name": "n/a"
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            },
            {
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            },
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            },
            {
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  "cveMetadata": {
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Sightings

Author	Source	Type	Date

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-2021-25378

CVE-2020-14149 (GCVE-0-2020-14149)

Tags

Sightings

Nomenclature