CVE-2020-29385

Status: AnalyzedMedium (5.5)—

GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base score: 5.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.54%
Percentile among all scored CVEs: 74
Score date: 10/3/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Canonical — Ubuntu Linux Fedoraproject — Fedora Gnome — Gdk-pixbuf

CWEs

CWE-835

References

Raw JSON (NVD)

Show

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      "value": "GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way."
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      "value": "GNOME gdk-pixbuf (también se conoce como GdkPixbuf) versiones anteriores a 2.42.2, permite una denegación de servicio (bucle infinito) en el archivo lzw.c en la función write_indexes.&#xa0;si c-)self_code es igual a 10, self-)code_table[10].extends asignará el valor 11 a c.&#xa0;La siguiente ejecución en el ciclo asignará self-)code_table[11].extends a c, que dará el valor de 10. Esto hará que el ciclo se ejecute indefinidamente.&#xa0;Este error se puede desencadenar, por ejemplo, al llamar a esta función con una imagen GIF con compresión LZW diseñada de una manera especial"
    }
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  "lastModified": "2026-06-17T03:11:15.423",
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