CVE-2020-21050

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Source

https://nvd.nist.gov/vuln/detail/CVE-2020-21050

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-21050.json

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2020-21050

Downstream

DEBIAN-CVE-2020-21050

UBUNTU-CVE-2020-21050

Published

2021-09-14T16:15:08Z

Modified

2025-11-09T15:10:52.789079Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

Libsixel prior to v1.8.3 contains a stack buffer overflow in the function gifprocessraster at fromgif.c.

References

Affected packages

Git / github.com/saitoha/libsixel

Affected ranges

Type: GIT
Repo: https://github.com/saitoha/libsixel
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

7808a06b88c11dbc502318cdd51fa374f8cd47ee

Fixed

933670340dcd51e41d014d83e8d693688605b773

Affected versions

v0.*

v0.11.0

v0.12.0

v0.14.0

v0.15.0

v0.16.0

v0.16.1

v0.17.0

v0.17.1

v0.17.2

v0.18.0

v0.19.0

v0.19.1

v0.19.2

v0.19.3

v0.19.4

v0.19.5

v0.19.6

v0.20.0

v0.21.0

v0.21.1

v0.22.0

v0.22.1

v0.22.2

v0.22.3

v0.23.0

v0.23.1

v0.23.2

v0.24.0

v0.24.2

v0.25.0

v0.25.1

v0.25.2

v0.25.3

v0.25.4

v0.25.5

v0.26.0

v0.27.0

v0.27.1

v0.28.0

v1.*

v1.0.0

v1.0.1

v1.0.2

v1.0.3

v1.1.0

v1.1.1

v1.1.2

v1.1.3

v1.1.4

v1.1.5

v1.2.0

v1.2.1

v1.2.2

v1.2.3

v1.3.0

v1.3.1

v1.3.2

v1.3.3

v1.3.4

v1.3.5

v1.3.6

v1.4.0

v1.4.1

v1.4.10

v1.4.11

v1.4.12

v1.4.13

v1.4.2

v1.4.3

v1.4.4

v1.4.5

v1.4.6

v1.4.7

v1.4.8

v1.4.9

v1.5.0

v1.5.1

v1.5.2

v1.5.3

v1.6.0

v1.6.1

v1.7.0

v1.7.1

v1.7.2

v1.7.3

v1.8.0

v1.8.1

v1.8.2

Database specific

vanir_signatures

[
    {
        "id": "CVE-2020-21050-244d69a8",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "175574492598543277969436211512690864925",
                "194531010564632863051193411201857485226",
                "108804307067728025131035644261459305836",
                "297906702356113557392178325411700024457",
                "107787329303055701185448030896175380160",
                "288015572335704952761465791591498123100",
                "322721482439620773292953093602934770068",
                "178929026358038916369051243438204807773",
                "312421349585840974245558892660386465855",
                "259498842521849967684086732118441106245",
                "133920814791315351387894078653894310279",
                "33007981887150821534680388865927131853",
                "86036271831702688151604936154289079873",
                "39883914856058095569596070340089687712",
                "196345542841231424156007106882531784582"
            ],
            "threshold": 0.9
        },
        "target": {
            "file": "src/fromgif.c"
        },
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://github.com/saitoha/libsixel/commit/7808a06b88c11dbc502318cdd51fa374f8cd47ee"
    },
    {
        "id": "CVE-2020-21050-f426d9a7",
        "signature_type": "Function",
        "digest": {
            "length": 1865.0,
            "function_hash": "105840205852819351122098297945601229954"
        },
        "target": {
            "file": "src/fromgif.c",
            "function": "gif_process_raster"
        },
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://github.com/saitoha/libsixel/commit/7808a06b88c11dbc502318cdd51fa374f8cd47ee"
    }
]

Git / github.com/libsixel/libsixel