CVE-2023-45666— Possible double-free or memory leak in stbi__load_gif_main in stb_image
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2023-45666
Vulnerability Information
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Vulnerability Title
Possible double-free or memory leak in stbi__load_gif_main in stb_image
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
stb_image 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
stb是一款用于C/C ++的单文件公共域库。 stb_image 存在安全漏洞，该漏洞源于可能导致内存泄漏和双重释放。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-45666
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 9135 chars
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III. Intelligence Information for CVE-2023-45666
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Mailing List Discussions for CVE-2023-45666 (3)
Other References for CVE-2023-45666 (3)
Same Patch Batch · nothings · 2023-10-20 · 14 CVEs total
| CVE-2023-45681 | 7.3 HIGH | Out of bounds heap buffer write in stb_vorbis |
| CVE-2023-45679 | 7.3 HIGH | Attempt to free an uninitialized memory pointer in vorbis_deinit in stb_vorbis |
| CVE-2023-45677 | 7.3 HIGH | Heap buffer out of bounds write in start_decoder in stb_vorbis |
| CVE-2023-45676 | 7.3 HIGH | Multi-byte write heap buffer overflow in start_decoder in stb_vorbis |
| CVE-2023-45664 | 7.3 HIGH | Double-free in stbi__load_gif_main_outofmem in stb_image |
| CVE-2023-45678 | 6.5 MEDIUM | Off-by-one heap buffer write in start_decoder in stb_vorbis |
| CVE-2023-45675 | 6.5 MEDIUM | 0 byte write heap buffer overflow in start_decoder in stb_vorbis |
| CVE-2023-45662 | 6.5 MEDIUM | Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image |
| CVE-2023-45661 | 6.5 MEDIUM | Wild address read in stbi__gif_load_next in stb_image |
| CVE-2023-45682 | 5.3 MEDIUM | Wild address read in vorbis_decode_packet_rest in stb_vorbis |
| CVE-2023-45680 | 5.3 MEDIUM | Null pointer dereference in vorbis_deinit in stb_vorbis |
| CVE-2023-45667 | 5.3 MEDIUM | Null pointer dereference because of an uninitialized variable in stb_image |
| CVE-2023-45663 | 5.3 MEDIUM | Disclosure of uninitialized memory in stbi__tga_load in stb_image |
IV. Related Vulnerabilities
Same product: stb
- CVE-2026-5317
Nothings stb stb_vorbis.c start_decoder out-of-bounds write - CVE-2026-5316
Nothings stb stb_vorbis.c setup_free allocation of resources - CVE-2026-5315
Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of- - CVE-2026-5314
Nothings stb TTF File stb_truetype.h stbtt_InitFont_internal - CVE-2026-5313
Nothings stb GIF Decoder stb_image.h stbi__gif_load_next den
Same vendor: nothings
- CVE-2026-5317
Nothings stb stb_vorbis.c start_decoder out-of-bounds write - CVE-2026-5316
Nothings stb stb_vorbis.c setup_free allocation of resources - CVE-2026-5315
Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of- - CVE-2026-5314
Nothings stb TTF File stb_truetype.h stbtt_InitFont_internal - CVE-2026-5313
Nothings stb GIF Decoder stb_image.h stbi__gif_load_next den
Same weakness: CWE-415
- CVE-2026-18663
389-ds-base: 389-ds-base: pre-authentication double-free in - CVE-2026-65780
Windows Autopilot Elevation of Privilege Vulnerability - CVE-2026-62889
Windows Secure Socket Tunneling Protocol (SSTP) Remote Code - CVE-2026-62766
Windows Kerberos Elevation of Privilege Vulnerability - CVE-2026-61366
Windows Network Connection Broker Elevation of Privilege Vul
V. Comments for CVE-2023-45666
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