CVE-2021-20298

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-20298
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20298.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-20298
Downstream
Related
Published
2022-08-23T16:15:09Z
Modified
2025-10-27T04:12:44.808648Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.

References

Affected packages

Git / github.com/academysoftwarefoundation/openexr

Affected ranges

Type
GIT
Repo
https://github.com/academysoftwarefoundation/openexr
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
85fd638ae0d5fa132434f4cbf32590261c1dba97

Affected versions

Other

OPENEXR_1_0_4

v1.*

v1.7.1

v2.*

v2.0.0
v2.0.0.GM
v2.0.0.beta.1
v2.0.0.beta.2
v2.0.1
v2.1.0
v2.2.0
v2.3.0
v2.4.0
v2.4.0-beta.1
v2.5.0

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://github.com/academysoftwarefoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97",
        "target": {
            "file": "OpenEXR/IlmImf/ImfB44Compressor.cpp"
        },
        "id": "CVE-2021-20298-7d322475",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "337182622941885860691948893909499588135",
                "323662791025237067706865570695215691721",
                "262227886135352975191095936665666742560",
                "102441096919337918920502902234704070284"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "source": "https://github.com/academysoftwarefoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32590261c1dba97",
        "target": {
            "function": "B44Compressor::B44Compressor",
            "file": "OpenEXR/IlmImf/ImfB44Compressor.cpp"
        },
        "id": "CVE-2021-20298-a5a84c0a",
        "signature_version": "v1",
        "digest": {
            "length": 1483.0,
            "function_hash": "73840588326705174605545363839552404531"
        }
    }
]

Git / github.com/openexr/openexr

Affected ranges

Type
GIT
Repo
https://github.com/openexr/openexr
Events
Introduced
0 Unknown introduced commit / All previous commits are affected