CVE-2023-45664highCWE-415

CVE-2023-45664: high-severity vulnerability in nothings stb

Double-free in stbi__load_gif_main_outofmem in stb_image

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.3epss 0.9%
stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
nothings · stb
Related CVEs — nothings stb

In the same product, most dangerous first.

CVE-2023-45667MEDIUMNull pointer dereference because of an uninitialized variable in stb_imageEPSS 1.3%CVE-2023-45666HIGHPossible double-free or memory leak in stbi__load_gif_main in stb_imageEPSS 1.1%CVE-2023-45662MEDIUMMulti-byte read heap buffer overflow in stbi__vertical_flip in stb_imageEPSS 0.8%CVE-2023-45678MEDIUMOff-by-one heap buffer write in start_decoder in stb_vorbisEPSS 0.7%CVE-2023-45675MEDIUM0 byte write heap buffer overflow in start_decoder in stb_vorbisEPSS 0.7%CVE-2023-45663MEDIUMDisclosure of uninitialized memory in stbi__tga_load in stb_imageEPSS 0.7%