CVE-2023-45663 Disclosure of uninitialized memory in stbi__tga_load in stb_image
An attacker can read uninitialized memory by providing a crafted TGA image to the stb_image library, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-45663?
CVE-2023-45663 is a medium-severity vulnerability in nothings stb, published on 20 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.
Weakness: CWE-908
Which versions are affected by CVE-2023-45663?
It affects 1 product.
Products include Nothings Stb Image.h.
How do I fix CVE-2023-45663?
Apply the vendor's patch.
Is CVE-2023-45663 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-45663 exists.
Other vulnerabilities in nothings stb
- CVE-2019-19777 Memory corruption in n/a
- CVE-2023-45664 Double-free in stbi__load_gif_main_outofmem in stb_image
- CVE-2023-45666 Possible double-free or memory leak in stbi__load_gif_main in stb_image
- CVE-2023-43281 Use after free in n/a
- CVE-2023-45661 Wild address read in stbi__gif_load_next in stb_image
Sources
Also known as DEBIAN-CVE-2023-45663, UBUNTU-CVE-2023-45663.