CVE-2021-40570

The binary MP4Box in Gpac 1.0.1 has a double-free vulnerability in the avc_compute_poc function in av_parsers.c, which allows attackers to cause a denial of service, even code execution and escalation of privileges.

References

Affected packages

Git / github.com/gpac/gpac

Affected ranges

Type

GIT

Repo

https://github.com/gpac/gpac

Events

Introduced

d8538e8ae946b32d99c6b2c57cbb327146e9cd9d

Last Affected

d8538e8ae946b32d99c6b2c57cbb327146e9cd9d

Fixed

04dbf08bff4d61948bab80c3f9096ecc60c7f302

Database specific

Show details

{
    "cpe":  "cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "1.0.1"
        },
        {
            "last_affected":  "1.0.1"
        }
    ],
    "source":  [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

1.*

1.0.1

v1.*

v1.0.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40570.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "39295482979318475893292998550012608033",
            "length":  10192
        },
        "id":  "CVE-2021-40570-02f95021",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/gpac/gpac/commit/04dbf08bff4d61948bab80c3f9096ecc60c7f302",
        "target":  {
            "file":  "src/media_tools/av_parsers.c",
            "function":  "gf_avc_read_sps_bs_internal"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "162301846487824417085976151097850441387",
                "290865607641083795548660822562839751511",
                "36877859478553293821283680965112273961",
                "277556399151842539648333058950472107336"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2021-40570-e7a12def",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/gpac/gpac/commit/04dbf08bff4d61948bab80c3f9096ecc60c7f302",
        "target":  {
            "file":  "src/media_tools/av_parsers.c"
        }
    }
]

vanir_signatures_modified

"2026-08-07T16:58:09Z"