// For flags

CVE-2023-45663

Disclosure of uninitialized memory in stbi__tga_load in stb_image

Severity Score

5.5
*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. 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.

stb_image es una librería con licencia MIT de un solo archivo para procesar imágenes. La función stbi__getn lee una cantidad específica de bytes del contexto (normalmente un archivo) en el búfer especificado. En caso de que la secuencia del archivo apunte al final, devuelve cero. Hay dos lugares donde no se verifica su valor de retorno: en la función `stbi__hdr_load` y en la función `stbi__tga_load`. Es probable que el último de los dos sea más explotable, ya que un atacante también puede controlar el tamaño de un búfer no inicializado.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
* 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
  • 2023-11-04 EPSS Updated
  • 2024-09-12 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-908: Use of Uninitialized Resource
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