{
  "threat_severity" : "Moderate",
  "public_date" : "2021-04-13T00:00:00Z",
  "bugzilla" : {
    "description" : "libsndfile: heap out-of-bounds read in src/flac.c in flac_buffer_copy",
    "id" : "2027690",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2027690"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-125",
  "details" : [ "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.", "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." ],
  "statement" : "This flaw is out of support scope for libsndfile shipped with Red Hat Enterprise Linux 6 and 7.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-05-10T00:00:00Z",
    "advisory" : "RHSA-2022:1968",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "libsndfile-0:1.0.28-12.el8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "libsndfile",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "libsndfile",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "libsndfile",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-4156\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-4156" ],
  "name" : "CVE-2021-4156",
  "mitigation" : {
    "value" : "One way to mitigate the risk of this flaw is to not open untrusted sound files using libsndfile or other linked programs.",
    "lang" : "en:us"
  },
  "csaw" : false
}