CVE-2020-25690

fontforge: SFD_GetFontMetaData() insufficient CVE-2020-5395 backport

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds write flaw was found in FontForge in versions before 20200314 while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Se encontró un fallo de escritura fuera de límites en FontForge en versiones anteriores a 20200314 mientras se analizan archivos SFD que contienen determinados tokens LayerCount. Este fallo permite a un atacante manipular la memoria asignada en la pila, causando a la aplicación bloquearse o ejecutar código arbitrario. La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema

An out-of-bounds write flaw was found in FontForge while parsing SFD files containing certain LayerCount tokens. This flaw allows an attacker to manipulate the memory allocated on the heap, causing the application to crash or execute arbitrary code. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

*Credits: N/A

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

2020-09-16 CVE Reserved
2020-11-04 CVE Published
2024-08-04 CVE Updated
2024-08-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1893188	2020-11-04

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2020-25690	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fontforge Search vendor "Fontforge"		Fontforge Search vendor "Fontforge" for product "Fontforge"				< 20200314 Search vendor "Fontforge" for product "Fontforge" and version " < 20200314"		-		Affected