CVE-2020-25125

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.

GnuPG versiones 2.2.21 y 2.2.22 (y Gpg4win versión 3.1.12), presenta un desbordamiento de la matriz, conllevando a un bloqueo o posiblemente otro impacto no especificado, cuando una víctima importa la clave OpenPGP de un atacante, y esta clave contiene preferencias AEAD. El desbordamiento es causado por un error en el archivo g10/key-check.c. NOTA: GnuPG versión 2.3.x, no está afectado. GnuPG versión 2.2.23 es una versión corregida

*Credits: N/A

Attack Vector

Local

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

2020-09-03 CVE Reserved
2020-09-03 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (6)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2020/09/03/4	Mailing List
http://www.openwall.com/lists/oss-security/2020/09/03/5	Mailing List
https://dev.gnupg.org/T5050	Mailing List

URL	Date	SRC
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034	2024-08-04

URL	Date	SRC
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc	2020-09-11

URL	Date	SRC
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html	2020-09-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnupg Search vendor "Gnupg"		Gnupg Search vendor "Gnupg" for product "Gnupg"				2.2.21 Search vendor "Gnupg" for product "Gnupg" and version "2.2.21"		-		Affected
Gnupg Search vendor "Gnupg"		Gnupg Search vendor "Gnupg" for product "Gnupg"				2.2.22 Search vendor "Gnupg" for product "Gnupg" and version "2.2.22"		-		Affected
Gpg4win Search vendor "Gpg4win"		Gpg4win Search vendor "Gpg4win" for product "Gpg4win"				3.1.12 Search vendor "Gpg4win" for product "Gpg4win" and version "3.1.12"		-		Affected