CVE-2018-20450

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

La función read_MSAT en ole.c en libxls, hasta la versión 1.4.0, tiene una doble liberación (double free) que permite que los atacantes provoquen una denegación de servicio (cierre inesperado de la aplicación) mediante un archivo manipulado. Esta vulnerabilidad es diferente de CVE-2017-2897.

*Credits: N/A

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

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

2018-12-25 CVE Reserved
2018-12-25 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-11-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-415: Double Free

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/evanmiller/libxls/issues/34	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202003-64	2020-03-30

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