Stb Image H
CVE-2023-45664
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
stb_image is a single file MIT licensed library for processing images. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-415. 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. Affected products include: Nothings Stb Image.H.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Stb Image H
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stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__s
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stb_image is a single file MIT licensed library for processing images. Rated high severity (CVSS 8.1), this vulnerabilit
stb_image is a single file MIT licensed library for processing images. Rated high severity (CVSS 7.5), this vulnerabilit
stb_image is a single file MIT licensed library for processing images. Rated high severity (CVSS 7.1), this vulnerabilit
Same weakness CWE-415 – Double Free
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External POC / Exploit Code
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