// For flags

CVE-2018-20452

 

Severity Score

8.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

La función read_MSAT_body en ole.c en libxls 1.4.0 tiene una liberación no válida que permite que los atacantes provoquen una denegación de servicio (cierre inesperado de la aplicación) u otro tipo de impacto sin especificar mediante un archivo manipulado. Esto se debe a la gestión inconsistente de la memoria (nueva o liberada) en ole2_read_header en ole.c.

*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
  • 2018-12-25 CVE Reserved
  • 2018-12-25 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Libxls Project
Search vendor "Libxls Project"
 Libxls
Search vendor "Libxls Project" for product "Libxls"
 1.4.0
Search vendor "Libxls Project" for product "Libxls" and version "1.4.0"
-
Affected