Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-0214

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
22/04/2021
Last modified:
28/04/2021

Description

A vulnerability in the distributed or centralized periodic packet management daemon (PPMD) of Juniper Networks Junos OS may cause receipt of a malformed packet to crash and restart the PPMD process, leading to network destabilization, service interruption, and a Denial of Service (DoS) condition. Continued receipt and processing of these malformed packets will repeatedly crash the PPMD process and sustain the Denial of Service (DoS) condition. Due to the nature of the specifically crafted packet, exploitation of this issue requires direct, adjacent connectivity to the vulnerable component. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S5, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Adjacent
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
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 3.30 LOW
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
3.30
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools