CVE catalog

CVE-2021-32439

UBUNTU-

[CVE catalog]

Buffer overflow in the stbl_AppendSize function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.

Severity
Unknown
Published
Updated
Source
[NVD] · [CVE record]
EPSS
1.27% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Ubuntuprogpac2.2.1+dfsg1-3Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1build1Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1build2Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1ubuntu0.1~esm2Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3build2Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3build3Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.88+ds1-1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-1ubuntu1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-2Affected[UBUNTU-CVE-2021-32439]

Showing 12 observations. All 26 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debian11gpac1.0.1+dfsg1-4Affected[DEBIAN-CVE-2021-32439]
Debian11gpac1.0.1+dfsg1-4+deb11u1Affected[DEBIAN-CVE-2021-32439]
Debian11gpac1.0.1+dfsg1-4+deb11u2Affected[DEBIAN-CVE-2021-32439]
Debian11gpac1.0.1+dfsg1-4+deb11u3Affected[DEBIAN-CVE-2021-32439]
Debian11gpac1.0.1+dfsg1-5Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.0.0+dfsg1-1Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.0.0+dfsg1-2Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.0.0+dfsg1-4Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.2.1+dfsg1-1Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.2.1+dfsg1-2Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.2.1+dfsg1-3Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.2.1+dfsg1-3.1Affected[DEBIAN-CVE-2021-32439]
Debian11gpac2.2.1+dfsg1-3.1~exp1Affected[DEBIAN-CVE-2021-32439]
Ubuntu20.04ccextractor0.87+ds1-1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.88+ds1-1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-1ubuntu1Affected[UBUNTU-CVE-2021-32439]
Ubuntu22.04ccextractor0.93+ds2-2Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3build2Affected[UBUNTU-CVE-2021-32439]
Ubuntu24.04ccextractor0.94+ds1-3build3Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1build1Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1build2Affected[UBUNTU-CVE-2021-32439]
Ubuntuprogpac2.2.1+dfsg1-3.1ubuntu0.1~esm2Affected[UBUNTU-CVE-2021-32439]
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "gpac",
      "distro": "debian",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "11",
      "versions": [
        "1.0.1+dfsg1-4",
        "1.0.1+dfsg1-4+deb11u1",
        "1.0.1+dfsg1-4+deb11u2",
        "1.0.1+dfsg1-4+deb11u3",
        "1.0.1+dfsg1-5",
        "2.0.0+dfsg1-1",
        "2.0.0+dfsg1-2",
        "2.0.0+dfsg1-4",
        "2.2.1+dfsg1-1",
        "2.2.1+dfsg1-2",
        "2.2.1+dfsg1-3",
        "2.2.1+dfsg1-3.1",
        "2.2.1+dfsg1-3.1~exp1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-32439",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "DEBIAN-CVE-2021-32439",
      "provider_updated_at": "2026-08-27T23:04:02.766030368Z"
    },
    {
      "name": "gpac",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "2.2.1+dfsg1-3",
        "2.2.1+dfsg1-3.1",
        "2.2.1+dfsg1-3.1build1",
        "2.2.1+dfsg1-3.1build2",
        "2.2.1+dfsg1-3.1ubuntu0.1~esm2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-32439",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-32439",
      "provider_updated_at": "2026-04-22T12:53:36.801506Z"
    },
    {
      "name": "ccextractor",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "0.87+ds1-1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-32439",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-32439",
      "provider_updated_at": "2026-04-22T12:53:36.801506Z"
    },
    {
      "name": "ccextractor",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "0.88+ds1-1",
        "0.93+ds2-1",
        "0.93+ds2-1ubuntu1",
        "0.93+ds2-2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-32439",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-32439",
      "provider_updated_at": "2026-04-22T12:53:36.801506Z"
    },
    {
      "name": "ccextractor",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "0.94+ds1-3",
        "0.94+ds1-3build2",
        "0.94+ds1-3build3"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-32439",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-32439",
      "provider_updated_at": "2026-04-22T12:53:36.801506Z"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database]