CVE-2020-19491

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-19491
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-19491.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-19491
Downstream
Published
2021-07-21T18:15:09Z
Modified
2025-10-21T05:45:04.184765Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

There is an invalid memory access bug in cgif.c that leads to a Segmentation fault in sam2p 0.49.4. A crafted input will lead to a denial of service or possibly unspecified other impact.

References

Affected packages

Git / github.com/pts/sam2p

Affected ranges

Type
GIT
Repo
https://github.com/pts/sam2p
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73

Affected versions

v0.*

v0.49.2
v0.49.3
v0.49.4

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73",
        "target": {
            "file": "cgif.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "id": "CVE-2020-19491-2c537f53",
        "digest": {
            "line_hashes": [
                "26584005264558608497469863337678664354",
                "277268880482349854981547270748005376378",
                "187408893928214441657464376692005425479",
                "115241181371941928282202310218825599045"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line"
    },
    {
        "source": "https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73",
        "target": {
            "function": "DGifOpenFileName",
            "file": "cgif.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "id": "CVE-2020-19491-6045c24c",
        "digest": {
            "function_hash": "62284236809577344850796114599691681433",
            "length": 16558.0
        },
        "signature_type": "Function"
    }
]