CVE-2019-14855

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.

Se detectó un fallo en la manera en que podrían ser falsificadas las firmas de certificados usando colisiones encontradas en el algoritmo SHA-1. Un atacante podría usar esta debilidad para crear firmas de certificados falsificadas. Este problema afecta a GnuPG versiones anteriores a 2.2.18.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-08-10 CVE Reserved
2020-03-20 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-326: Inadequate Encryption Strength

CAPEC

References (5)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855	Issue Tracking

URL	Date	SRC
https://rwc.iacr.org/2020/slides/Leurent.pdf	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://dev.gnupg.org/T4755	2022-11-08
https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html	2022-11-08
https://usn.ubuntu.com/4516-1	2022-11-08

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"				< 2.2.18 Search vendor "Gnupg" for product "Gnupg" and version " < 2.2.18"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				30 Search vendor "Fedoraproject" for product "Fedora" and version "30"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				31 Search vendor "Fedoraproject" for product "Fedora" and version "31"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected