cvelistv5 - CVE-2021-33912

CVE-2021-33912

Vulnerability from cvelistv5

Published

2022-01-19 00:00

Modified

2024-08-04 00:05

Severity ?

Summary

libspf2 before 1.2.11 has a four-byte heap-based buffer overflow that might allow remote attackers to execute arbitrary code (via an unauthenticated e-mail message from anywhere on the Internet) with a crafted SPF DNS record, because of incorrect sprintf usage in SPF_record_expand_data in spf_expand.c. The vulnerable code may be part of the supply chain of a site's e-mail infrastructure (e.g., with additional configuration, Exim can use libspf2; the Postfix web site links to unofficial patches for use of libspf2 with Postfix; older versions of spfquery relied on libspf2) but most often is not.

References

URL	Tags
cve@mitre.org	https://github.com/shevek/libspf2/tree/8131fe140704eaae695e76b5cd09e39bd1dd220b	Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2022/01/msg00015.html	Mailing List, Third Party Advisory
cve@mitre.org	https://nathanielbennett.com/blog/libspf2-cve-jan-2022-disclosure	Exploit, Third Party Advisory
cve@mitre.org	https://security.gentoo.org/glsa/202401-22
af854a3a-2127-422b-91ae-364da2661108	https://github.com/shevek/libspf2/tree/8131fe140704eaae695e76b5cd09e39bd1dd220b	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2022/01/msg00015.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://nathanielbennett.com/blog/libspf2-cve-jan-2022-disclosure	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202401-22

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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          },
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    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
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        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2024-01-15T17:06:19.307442",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "dateReserved": "2021-06-07T00:00:00",
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    "state": "PUBLISHED"
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  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2021-33912

Vulnerability from cvelistv5

gsd-2021-33912

Vulnerability from gsd

ghsa-f8wp-q2v8-9hc2

Vulnerability from github

Tags

Sightings

Nomenclature