9.8
CVSSv3

CVE-2023-45666

Published: 21/10/2023 Updated: 04/11/2023
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 0

Vulnerability 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

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nothings stb image.h 2.28

Vendor Advisories

Debian Bug report logs - #1054911 libstb: CVE-2023-45661 CVE-2023-45662 CVE-2023-45663 CVE-2023-45664 CVE-2023-45666 CVE-2023-45667 CVE-2023-45675 CVE-2023-45676 CVE-2023-45677 CVE-2023-45678 CVE-2023-45679 CVE-2023-45680 CVE-2023-45681 CVE-2023-45682 Package: libstb; Maintainer for libstb is Yangfl <mmyangfl@gmailcom>; Repo ...