{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2021-33912","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","dateUpdated":"2024-08-04T00:05:52.118Z","dateReserved":"2021-06-07T00:00:00.000Z","datePublished":"2022-01-19T00:00:00.000Z"},"containers":{"cna":{"providerMetadata":{"orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre","dateUpdated":"2024-01-15T17:06:19.307Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/shevek/libspf2/tree/8131fe140704eaae695e76b5cd09e39bd1dd220b"},{"url":"https://nathanielbennett.com/blog/libspf2-cve-jan-2022-disclosure"},{"name":"[debian-lts-announce] 20220121 [SECURITY] [DLA 2890-1] libspf2 security update","tags":["mailing-list"],"url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00015.html"},{"name":"GLSA-202401-22","tags":["vendor-advisory"],"url":"https://security.gentoo.org/glsa/202401-22"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T00:05:52.118Z"},"title":"CVE Program Container","references":[{"url":"https://github.com/shevek/libspf2/tree/8131fe140704eaae695e76b5cd09e39bd1dd220b","tags":["x_transferred"]},{"url":"https://nathanielbennett.com/blog/libspf2-cve-jan-2022-disclosure","tags":["x_transferred"]},{"name":"[debian-lts-announce] 20220121 [SECURITY] [DLA 2890-1] libspf2 security update","tags":["mailing-list","x_transferred"],"url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00015.html"},{"name":"GLSA-202401-22","tags":["vendor-advisory","x_transferred"],"url":"https://security.gentoo.org/glsa/202401-22"}]}]}}