CVE-2020-16118

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In GNOME Balsa before 2.6.0, a malicious server operator or man in the middle can trigger a NULL pointer dereference and client crash by sending a PREAUTH response to imap_mbox_connect in libbalsa/imap/imap-handle.c.

En GNOME Balsa versiones anteriores a 2.6.0, un operador de servidor malicioso o un man in the middle puede desencadenar una desreferencia del puntero NULL y un bloqueo del cliente mediante el envío de una respuesta PREAUTH hacia la función imap_mbox_connect en la biblioteca libbalsa/imap/imap-handle.c

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-07-29 CVE Reserved
2020-07-29 CVE Published
2023-05-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
https://gitlab.gnome.org/GNOME/balsa/-/issues/23	2024-08-04

URL	Date	SRC
https://gitlab.gnome.org/GNOME/balsa/-/commit/4e245d758e1c826a01080d40c22ca8706f0339e5	2023-02-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00035.html	2023-02-03
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00045.html	2023-02-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnome Search vendor "Gnome"		Balsa Search vendor "Gnome" for product "Balsa"				< 2.6.0 Search vendor "Gnome" for product "Balsa" and version " < 2.6.0"		-		Affected
Opensuse Search vendor "Opensuse"		Backports Sle Search vendor "Opensuse" for product "Backports Sle"				15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0"		sp1		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected