Vulnerability-Lookup

CNVD-2022-19090

Vulnerability from cnvd - Published: 2022-03-14

Title

libspf2缓冲区溢出漏洞

Description

libspf2是一个库，它允许电子邮件系统（例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange）检查SPF 记录并确保电子邮件得到了来自它的域名的授权。 libspf2存在缓冲区溢出漏洞，该漏洞源于libspf2的SPF宏可触发缓冲区溢出，攻击者可利用该漏洞造成拒绝服务，并可能运行代码。

Severity

高

Patch Name

libspf2缓冲区溢出漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117

Reference

https://www.debian.org/security/2021/dsa-4955 https://security-tracker.debian.org/tracker/CVE-2021-20314

Impacted products

Name
libspf2 libspf2 <=1.2.11

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20314",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20314"
    }
  },
  "description": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\n\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\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://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-19090",
  "openTime": "2022-03-14",
  "patchDescription": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\r\n\r\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\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": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libspf2 libspf2 \u003c=1.2.11"
  },
  "referenceLink": "https://www.debian.org/security/2021/dsa-4955\r\nhttps://security-tracker.debian.org/tracker/CVE-2021-20314",
  "serverity": "\u9ad8",
  "submitTime": "2021-09-08",
  "title": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-20314 (GCVE-0-2021-20314)

Vulnerability from cvelistv5 – Published: 2021-08-12 14:37 – Updated: 2025-02-13 16:27

Summary

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.

Severity

No CVSS data available.

CWE

stack buffer overflow

Assigner

redhat redhat root

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1993070	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202401-22

Impacted products

1 product

Vendor	Product	Version
n/a	libspf2	Affected: 1.2.11

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:37:23.882Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993070"
          },
          {
            "name": "FEDORA-2021-aa8637c985",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/"
          },
          {
            "name": "FEDORA-2021-994751581f",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/"
          },
          {
            "name": "FEDORA-2021-044be3d54e",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202401-22"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libspf2",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "1.2.11"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "stack buffer overflow",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-15T17:06:16.537Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993070"
        },
        {
          "name": "FEDORA-2021-aa8637c985",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/"
        },
        {
          "name": "FEDORA-2021-994751581f",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/"
        },
        {
          "name": "FEDORA-2021-044be3d54e",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/"
        },
        {
          "url": "https://security.gentoo.org/glsa/202401-22"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-20314",
    "datePublished": "2021-08-12T14:37:09.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2025-02-13T16:27:45.177Z",
    "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

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CNVD-2022-19090

CVE-2021-20314 (GCVE-0-2021-20314)

Tags

Sightings

Nomenclature

Related by attack behaviour