// For flags

CVE-2018-20330

Ubuntu Security Notice USN-4190-1

Severity Score

8.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The tjLoadImage function in libjpeg-turbo 2.0.1 has an integer overflow with a resultant heap-based buffer overflow via a BMP image because multiplication of pitch and height is mishandled, as demonstrated by tjbench.

La función tjLoadImage en libjpeg-turbo en 2.0.1 tiene un desbordamiento de enteros con un desbordamiento de búfer basado en memoria dinámica (heap) resultante mediante una imagen BMP. Esto se debe a que se gestiona de manera incorrecta la multiplicación del pitch y la altura, tal y como queda demostrado con tjbench.

It was discovered that libjpeg-turbo incorrectly handled certain BMP images. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that libjpeg-turbo incorrectly handled certain JPEG images. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 19.04. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-12-21 CVE Reserved
  • 2018-12-21 CVE Published
  • 2024-08-05 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-190: Integer Overflow or Wraparound
  • CWE-787: Out-of-bounds Write
CAPEC
References (2)
URL Tag Source
URL Date SRC
URL Date SRC
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/304 2020-08-24
URL Date SRC
https://usn.ubuntu.com/4190-1 2020-08-24
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Libjpeg-turbo
Search vendor "Libjpeg-turbo"
 Libjpeg-turbo
Search vendor "Libjpeg-turbo" for product "Libjpeg-turbo"
 2.0.1
Search vendor "Libjpeg-turbo" for product "Libjpeg-turbo" and version "2.0.1"
-
Affected