fkie_cve-2023-45666
Vulnerability from fkie_nvd
Published
2023-10-21 00:15
Modified
2024-11-21 08:27
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
stb_image is a single file MIT licensed library for processing images. It may look like `stbi__load_gif_main` doesn’t give guarantees about the content of output value `*delays` upon failure. Although it sets `*delays` to zero at the beginning, it doesn’t do it in case the image is not recognized as GIF and a call to `stbi__load_gif_main_outofmem` only frees possibly allocated memory in `*delays` without resetting it to zero. Thus it would be fair to say the caller of `stbi__load_gif_main` is responsible to free the allocated memory in `*delays` only if `stbi__load_gif_main` returns a non null value. However at the same time the function may return null value, but fail to free the memory in `*delays` if internally `stbi__convert_format` is called and fails. Thus the issue may lead to a memory leak if the caller chooses to free `delays` only when `stbi__load_gif_main` didn’t fail or to a double-free if the `delays` is always freed
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nothings | stb_image.h | 2.28 |
{
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"lang": "en",
"value": "stb_image is a single file MIT licensed library for processing images. It may look like `stbi__load_gif_main` doesn\u2019t give guarantees about the content of output value `*delays` upon failure. Although it sets `*delays` to zero at the beginning, it doesn\u2019t do it in case the image is not recognized as GIF and a call to `stbi__load_gif_main_outofmem` only frees possibly allocated memory in `*delays` without resetting it to zero. Thus it would be fair to say the caller of `stbi__load_gif_main` is responsible to free the allocated memory in `*delays` only if `stbi__load_gif_main` returns a non null value. However at the same time the function may return null value, but fail to free the memory in `*delays` if internally `stbi__convert_format` is called and fails. Thus the issue may lead to a memory leak if the caller chooses to free `delays` only when `stbi__load_gif_main` didn\u2019t fail or to a double-free if the `delays` is always freed"
},
{
"lang": "es",
"value": "stb_image es una librer\u00eda con licencia MIT de un solo archivo para procesar im\u00e1genes. Puede parecer que `stbi__load_gif_main` no ofrece garant\u00edas sobre el contenido del valor de salida `*delays` en caso de falla. Aunque establece `*delays` en cero al principio, no lo hace en caso de que la imagen no se reconozca como GIF y una llamada a `stbi__load_gif_main_outofmem` solo libera la memoria posiblemente asignada en `*delays` sin restablecerla a cero. Por lo tanto, ser\u00eda justo decir que la persona que llama a `stbi__load_gif_main` es responsable de liberar la memoria asignada en `*delays` solo si `stbi__load_gif_main` devuelve un valor no nulo. Sin embargo, al mismo tiempo, la funci\u00f3n puede devolver un valor nulo, pero no puede liberar la memoria en `*delays` si internamente se llama a `stbi__convert_format` y falla. Por lo tanto, el problema puede provocar una p\u00e9rdida de memoria si la persona que llama elige liberar los \"delays\" solo cuando \"stbi__load_gif_main\" no fall\u00f3 o una doble liberaci\u00f3n si los \"delays\" siempre se liberan."
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"id": "CVE-2023-45666",
"lastModified": "2024-11-21T08:27:10.390",
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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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