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UBUNTU-CVE-2021-4156 (CVE-2021-4156)

Vulnerability from osv_ubuntu – Published: 2022-03-23 20:15 – Updated: 2026-04-22 07:39 – Source website
VLAI
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.

Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libsndfile1",
            "binary_version": "1.0.25-7ubuntu2.2+esm4"
          },
          {
            "binary_name": "sndfile-programs",
            "binary_version": "1.0.25-7ubuntu2.2+esm4"
          }
        ],
        "priority_reason": "This only results in a DoS when reading a FLAC file"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libsndfile",
        "purl": "pkg:deb/ubuntu/libsndfile@1.0.25-7ubuntu2.2+esm4?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.25-7ubuntu2.2+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.25-7ubuntu1",
        "1.0.25-7ubuntu2",
        "1.0.25-7ubuntu2.1",
        "1.0.25-7ubuntu2.2",
        "1.0.25-7ubuntu2.2+esm1",
        "1.0.25-7ubuntu2.2+esm2",
        "1.0.25-7ubuntu2.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libsndfile1",
            "binary_version": "1.0.25-10ubuntu0.16.04.3+esm2"
          },
          {
            "binary_name": "sndfile-programs",
            "binary_version": "1.0.25-10ubuntu0.16.04.3+esm2"
          }
        ],
        "priority_reason": "This only results in a DoS when reading a FLAC file"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libsndfile",
        "purl": "pkg:deb/ubuntu/libsndfile@1.0.25-10ubuntu0.16.04.3+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.25-10ubuntu0.16.04.3+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.25-9.1",
        "1.0.25-10",
        "1.0.25-10ubuntu0.16.04.1",
        "1.0.25-10ubuntu0.16.04.2",
        "1.0.25-10ubuntu0.16.04.3",
        "1.0.25-10ubuntu0.16.04.3+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libsndfile1",
            "binary_version": "1.0.28-4ubuntu0.18.04.2+esm2"
          },
          {
            "binary_name": "sndfile-programs",
            "binary_version": "1.0.28-4ubuntu0.18.04.2+esm2"
          }
        ],
        "priority_reason": "This only results in a DoS when reading a FLAC file"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libsndfile",
        "purl": "pkg:deb/ubuntu/libsndfile@1.0.28-4ubuntu0.18.04.2+esm2?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.28-4ubuntu0.18.04.2+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.28-4",
        "1.0.28-4ubuntu0.18.04.1",
        "1.0.28-4ubuntu0.18.04.2",
        "1.0.28-4ubuntu0.18.04.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libsndfile1",
            "binary_version": "1.0.28-7ubuntu0.3"
          },
          {
            "binary_name": "sndfile-programs",
            "binary_version": "1.0.28-7ubuntu0.3"
          }
        ],
        "priority_reason": "This only results in a DoS when reading a FLAC file"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libsndfile",
        "purl": "pkg:deb/ubuntu/libsndfile@1.0.28-7ubuntu0.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.28-7ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.28-6",
        "1.0.28-7",
        "1.0.28-7ubuntu0.1",
        "1.0.28-7ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libsndfile1",
            "binary_version": "1.0.31-2ubuntu0.2"
          },
          {
            "binary_name": "sndfile-programs",
            "binary_version": "1.0.31-2ubuntu0.2"
          }
        ],
        "priority_reason": "This only results in a DoS when reading a FLAC file"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libsndfile",
        "purl": "pkg:deb/ubuntu/libsndfile@1.0.31-2ubuntu0.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.31-2ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.31-2",
        "1.0.31-2build1",
        "1.0.31-2ubuntu0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "An out-of-bounds read flaw was found in libsndfile\u0027s 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.",
  "id": "UBUNTU-CVE-2021-4156",
  "modified": "2026-04-22T07:39:51Z",
  "published": "2022-03-23T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4156"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5409-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-4156"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7273-1"
    }
  ],
  "related": [
    "USN-5409-1",
    "USN-7273-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-4156"
  ]
}



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