CVE-2023-45662 MEDIUM

CVE-2023-45662: Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image

Vendor Nothings
Product stb
Weakness CWE-125
Published October 20, 2023
Last update February 13, 2025

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

What the vulnerability does

01Description

stb_image is a single file MIT licensed library for processing images. When `stbi_set_flip_vertically_on_load` is set to `TRUE` and `req_comp` is set to a number that doesn’t match the real number of components per pixel, the library attempts to flip the image vertically. A crafted image file can trigger `memcpy` out-of-bounds read because `bytes_per_pixel` used to calculate `bytes_per_row` doesn’t match the real image array dimensions.

Key dates

02Disclosure timeline

October 20, 2023 CVE published
February 13, 2025 Record updated