Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2019-16027

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
26/01/2020
Last modified:
12/05/2022

Description

A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process.

Impact

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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
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:N/AC:L/Au:S/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

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

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xr:4.3.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:xr_12404:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:xr_12406:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:xr_12410:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:xr_12416:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.2.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.2.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.2.25:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.3.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_6008:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.1.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.1.4:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools