// For flags

CVE-2021-21235

Infinite loop in parsing PNG files in

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

kamadak-exif is an exif parsing library written in pure Rust. In kamadak-exif version 0.5.2, there is an infinite loop in parsing crafted PNG files. Specifically, reader::read_from_container can cause an infinite loop when a crafted PNG file is given. This is fixed in version 0.5.3. No workaround is available. Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.

kamadak-exif es una biblioteca de análisis exif escrita en Rust puro. En kamadak-exif versión 0.5.2, Se presenta un bucle infinito en el análisis de archivos PNG diseñados. Específicamente, la función reader::read_from_container puede causar un bucle infinito cuando se le proporciona un archivo PNG diseñado. Esto es corregido en la versión 0.5.3. Ninguna solución alternativa está disponible. Las aplicaciones que no aprueban archivos con la firma PNG a la función Reader::read_from_container no están afectadas

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-22 CVE Reserved
  • 2021-01-06 CVE Published
  • 2023-09-21 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Kamadak-exif Project
Search vendor "Kamadak-exif Project"
 Kamadak-exif
Search vendor "Kamadak-exif Project" for product "Kamadak-exif"
 0.5.2
Search vendor "Kamadak-exif Project" for product "Kamadak-exif" and version "0.5.2"
rust
Affected