CVE-2018-15587

evolution: specially crafted email leading to OpenPGP signatures being spoofed for arbitrary messages

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

GNOME Evolution through 3.28.2 is prone to OpenPGP signatures being spoofed for arbitrary messages using a specially crafted email that contains a valid signature from the entity to be impersonated as an attachment.

GNOME Evolution, hasta la versión 3.28.2, es propenso a que las firmas OpenPGP sean suplantadas para mensajes arbitrarios empleando un correo electrónico especialmente manipulado que contiene una firma válida de la entidad que será suplantada como adjunto.

Evolution is a GNOME application that provides integrated email, calendar, contact management, and communications functionality. The evolution-data-server packages provide a unified back end for applications which interact with contacts, tasks and calendar information. Evolution Data Server was originally developed as a back end for the Evolution information management application, but is now used by various other applications. Issues addressed include a spoofing vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-08-20 CVE Reserved
2019-02-11 CVE Published
2019-05-01 First Exploit
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-347: Improper Verification of Cryptographic Signature

CAPEC

References (16)

URL	Tag	Source
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html	Third Party Advisory
http://seclists.org/fulldisclosure/2019/Apr/38	Mailing List
http://www.openwall.com/lists/oss-security/2019/04/30/4	Mailing List
https://github.com/RUB-NDS/Johnny-You-Are-Fired	X_refsource_misc
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf	X_refsource_misc
https://lists.debian.org/debian-lts-announce/2019/04/msg00027.html	Mailing List
https://seclists.org/bugtraq/2019/Jun/7	Mailing List

URL	Date	SRC
https://packetstorm.news/files/id/152703	2019-05-01
https://bugzilla.gnome.org/show_bug.cgi?id=796424	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00047.html	2019-06-10
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00061.html	2019-06-10
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00024.html	2019-06-10
https://usn.ubuntu.com/3998-1	2019-06-10
https://www.debian.org/security/2019/dsa-4457	2019-06-10
https://access.redhat.com/security/cve/CVE-2018-15587	2020-04-28
https://bugzilla.redhat.com/show_bug.cgi?id=1677650	2020-04-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnome Search vendor "Gnome"		Evolution Search vendor "Gnome" for product "Evolution"				<= 3.28.2 Search vendor "Gnome" for product "Evolution" and version " <= 3.28.2"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected