// For flags

CVE-2023-45667

Null pointer dereference because of an uninitialized variable in stb_image

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

stb_image is a single file MIT licensed library for processing images.

If `stbi__load_gif_main` in `stbi_load_gif_from_memory` fails it returns a null pointer and may keep the `z` variable uninitialized. In case the caller also sets the flip vertically flag, it continues and calls `stbi__vertical_flip_slices` with the null pointer result value and the uninitialized `z` value. This may result in a program crash.

stb_image es una librería con licencia MIT de un solo archivo para procesar imágenes. Si falla `stbi__load_gif_main` en `stbi_load_gif_from_memory`, devuelve un puntero nulo y puede mantener la variable `z` sin inicializar. En caso de que la persona que llama también establezca el indicador de giro vertical, continúa y llama a `stbi__vertical_flip_slices` con el valor de resultado del puntero nulo y el valor `z` no inicializado. Esto puede provocar un fallo del programa.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-10-10 CVE Reserved
  • 2023-10-20 CVE Published
  • 2024-09-12 CVE Updated
  • 2024-10-26 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nothings
Search vendor "Nothings"
 Stb Image.h
Search vendor "Nothings" for product "Stb Image.h"
 2.28
Search vendor "Nothings" for product "Stb Image.h" and version "2.28"
-
Affected