CVE-2020-25648

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

20/10/2020

Last modified:

07/11/2023

Description

A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.

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:mozilla:network_security_services::::::::		3.58 (excluding)
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:fedoraproject:fedora:31:::::::*
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:::::::*
cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:::::::*
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools::::::::		9.2.6.0 (excluding)

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

CPE	From	Up to
cpe:2.3:a:mozilla:network_security_services::::::::		3.58 (excluding)
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:fedoraproject:fedora:31:::::::*
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:::::::*
cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:::::::*
cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools::::::::		9.2.6.0 (excluding)

CVE-2020-25648

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools