fkie_cve-2021-47642
Vulnerability from fkie_nvd
Published
2025-02-26 06:37
Modified
2025-09-23 18:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow
Coverity complains of a possible buffer overflow. However,
given the 'static' scope of nvidia_setup_i2c_bus() it looks
like that can't happen after examiniing the call sites.
CID 19036 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW)
1. fixed_size_dest: You might overrun the 48-character fixed-size string
chan->adapter.name by copying name without checking the length.
2. parameter_as_source: Note: This defect has an elevated risk because the
source argument is a parameter of the current function.
89 strcpy(chan->adapter.name, name);
Fix this warning by using strscpy() which will silence the warning and
prevent any future buffer overflows should the names used to identify the
channel become much longer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow\n\nCoverity complains of a possible buffer overflow. However,\ngiven the \u0027static\u0027 scope of nvidia_setup_i2c_bus() it looks\nlike that can\u0027t happen after examiniing the call sites.\n\nCID 19036 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW)\n1. fixed_size_dest: You might overrun the 48-character fixed-size string\n chan-\u003eadapter.name by copying name without checking the length.\n2. parameter_as_source: Note: This defect has an elevated risk because the\n source argument is a parameter of the current function.\n 89 strcpy(chan-\u003eadapter.name, name);\n\nFix this warning by using strscpy() which will silence the warning and\nprevent any future buffer overflows should the names used to identify the\nchannel become much longer."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: video: fbdev: nvidiafb: Use strscpy() para evitar el desbordamiento del b\u00fafer Coverity se queja de un posible desbordamiento del b\u00fafer. Sin embargo, dado el alcance \u0027est\u00e1tico\u0027 de nvidia_setup_i2c_bus(), parece que eso no puede suceder despu\u00e9s de examinar los sitios de llamada. CID 19036 (#1 de 1): Copiar en un b\u00fafer de tama\u00f1o fijo (STRING_OVERFLOW) 1. fixed_size_dest: Puede desbordar la cadena de tama\u00f1o fijo de 48 caracteres chan-\u0026gt;adapter.name copiando name sin verificar la longitud. 2. parameter_as_source: Nota: Este defecto tiene un riesgo elevado porque el argumento source es un par\u00e1metro de la funci\u00f3n actual. 89 strcpy(chan-\u0026gt;adapter.name, name); Corrija esta advertencia usando strscpy() que silenciar\u00e1 la advertencia y evitar\u00e1 futuros desbordamientos del b\u00fafer si los nombres utilizados para identificar el canal se vuelven mucho m\u00e1s largos."
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"id": "CVE-2021-47642",
"lastModified": "2025-09-23T18:46:15.617",
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"scope": "UNCHANGED",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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