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TI-2023-24464 Aliases CVE-2023-45663

Disclosure of uninitialized memory in stbi__tga_load in stb_image

Priority MEDIUM 64CWE-908Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-908 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00655 51st 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

VendorProductAffected versionsFixed inStatusSource
nothingsstbup to 2.28—No fix listedCNA
  • stb Vendornothings Affected up to 2.28 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nothings:stb_image.h:2.28:*:*:*:*:*:*:*2.28Vulnerablenothings
  • 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

  1. 2026-10-02 Threatist record created from CVE-2023-45663
  2. 2026-10-11 EPSS moved to the 50th–90th percentile

References

Advisory 4

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-2023-24462 Wild address read in stbi__gif_load_next in stb_image CVSS 3.1HIGH 7.1
  • TI-2023-23171 Double Free vulnerability in Nothings Stb Image.h v.2.28 allows a remote attacker to… CVSS 3.1MEDIUM 6.5
See all 18 →

Sources

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