CVE-2020-14058

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

30/06/2020

Last modified:

07/11/2023

Description

An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:squid-cache:squid::::::::	3.1 (including)	3.5.28 (including)
cpe:2.3:a:squid-cache:squid::::::::	4.0 (including)	4.12 (excluding)
cpe:2.3:a:squid-cache:squid::::::::	5.0 (including)	5.0.3 (excluding)
cpe:2.3:o:fedoraproject:fedora:31:::::::*
cpe:2.3:a:netapp:cloud_manager:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2020-14058

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools