{"id":"CVE-2021-4156","state":"PUBLISHED","title":"An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise)","description":"An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.","publishedAt":"2022-03-23T00:00:00.000Z","updatedAt":"2025-12-11T12:06:14.134Z","severity":null,"assigner":"redhat","products":["n/a libsndfile"],"affected":[{"vendor":"n/a","product":"libsndfile","versions":[{"version":"libsndfile 1.1.0","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2027690","https://github.com/libsndfile/libsndfile/pull/732/commits/4c30646abf7834e406f7e2429c70bc254e18beab","https://github.com/libsndfile/libsndfile/issues/731","https://lists.debian.org/debian-lts-announce/2022/06/msg00020.html","https://lists.debian.org/debian-lts-announce/2022/09/msg00036.html","https://security.gentoo.org/glsa/202309-11","https://lists.debian.org/debian-lts-announce/2025/12/msg00013.html"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T19:49:23.890Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/4xxx/CVE-2021-4156.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-4156","state":"PUBLISHED","datePublished":"2022-03-23T00:00:00.000Z","dateUpdated":"2025-12-11T12:06:14.134Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2021-12-22T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws."}],"affected":[{"vendor":"n/a","product":"libsndfile","versions":[{"version":"libsndfile 1.1.0","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027690"},{"url":"https://github.com/libsndfile/libsndfile/pull/732/commits/4c30646abf7834e406f7e2429c70bc254e18beab"},{"url":"https://github.com/libsndfile/libsndfile/issues/731"},{"url":"https://lists.debian.org/debian-lts-announce/2022/06/msg00020.html","name":"[debian-lts-announce] 20220628 [SECURITY] [DLA 3058-1] libsndfile security update","tags":["mailing-list"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00036.html","name":"[debian-lts-announce] 20220929 [SECURITY] [DLA 3126-1] libsndfile security update","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202309-11","name":"GLSA-202309-11","tags":["vendor-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","type":"CWE","lang":"en","description":"CWE-125"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2023-09-29T12:06:18.959Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027690","tags":["x_transferred"]},{"url":"https://github.com/libsndfile/libsndfile/pull/732/commits/4c30646abf7834e406f7e2429c70bc254e18beab","tags":["x_transferred"]},{"url":"https://github.com/libsndfile/libsndfile/issues/731","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/06/msg00020.html","name":"[debian-lts-announce] 20220628 [SECURITY] [DLA 3058-1] libsndfile security update","tags":["mailing-list","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/09/msg00036.html","name":"[debian-lts-announce] 20220929 [SECURITY] [DLA 3126-1] libsndfile security update","tags":["mailing-list","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202309-11","name":"GLSA-202309-11","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/12/msg00013.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-12-11T12:06:14.134Z"}}]}}}