TI-2023-24462 Aliases CVE-2023-45661

Wild address read in stbi__gif_load_next in stb_image

HIGH 70CWE-125Published 2023-10-20 · Updated 2025-02-13

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00572 47th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
nothings	stb	up to 2.28	—	No fix listed	CNA

stb Vendornothings Affected up to 2.28 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nothings:stb_image.h:2.28:::::::*	2.28	Vulnerable	nothings

cpe:2.3:a:nothings:stb_image.h:2.28:*:*:*:*:*:*:* Versions 2.28 Vulnerable ·nothings

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2023-45661

References

Patch 1

https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L6817

Advisory 2

Other 3

TI-2023-24466 Possible double-free or memory leak in stbi__load_gif_main in stb_image CVSS 3.1CRITICAL 9.8
TI-2023-24465 Double-free in stbi__load_gif_main_outofmem in stb_image CVSS 3.1HIGH 8.8
TI-2023-24463 Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image CVSS 3.1HIGH 8.1
TI-2023-24467 Null pointer dereference because of an uninitialized variable in stb_image CVSS 3.1HIGH 7.5
TI-2023-23171 Double Free vulnerability in Nothings Stb Image.h v.2.28 allows a remote attacker to… CVSS 3.1MEDIUM 6.5
TI-2023-24464 Disclosure of uninitialized memory in stbi__tga_load in stb_image CVSS 3.1MEDIUM 5.5

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences