🛡️ CVE-2023-45661 — stb-image.h

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-125 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

stb_image is a single file MIT licensed library for processing images. A crafted image file may trigger out of bounds memcpy read in stbi__gif_load_next. This happens because two_back points to a memory address lower than the start of the buffer out. This issue may be used to leak internal memory allocation information.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability low.

Weakness class

CVE-2023-45661 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2023-45661 is recorded against 1 package.

  • stb-image.h

Timeline and source

Published on 21 October 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
securitylab.github.com
github.com
github.com
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
securitylab.github.com

CVE-2023-45661 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2023-10-21
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
stb-image.h

References

Similar Threats

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