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

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CVE-2019-14810

Severity CVSS v4.0:
Pending analysis
Type:
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
10/10/2019
Last modified:
21/10/2019

Description

A vulnerability has been found in the implementation of the Label Distribution Protocol (LDP) protocol in EOS. Under race conditions, the LDP agent can establish an LDP session with a malicious peer potentially allowing the possibility of a Denial of Service (DoS) attack on route updates and in turn potentially leading to an Out of Memory (OOM) condition that is disruptive to traffic forwarding. Affected EOS versions include: 4.22 release train: 4.22.1F and earlier releases 4.21 release train: 4.21.0F - 4.21.2.3F, 4.21.3F - 4.21.7.1M 4.20 release train: 4.20.14M and earlier releases 4.19 release train: 4.19.12M and earlier releases End of support release trains (4.18 and 4.17)

Impact

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

Base Score: 5.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.90
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

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

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* 4.19 (including) 4.19.12m (including)
cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* 4.20 (including) 4.20.14m (including)
cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* 4.21.0f (including) 4.21.2.3f (including)
cpe:2.3:o:arista:extensible_operating_system:*:*:*:*:*:*:*:* 4.21.3f (including) 4.21.7 (including)
cpe:2.3:o:arista:extensible_operating_system:4.17:*:*:*:*:*:*:*
cpe:2.3:o:arista:extensible_operating_system:4.18:*:*:*:*:*:*:*
cpe:2.3:o:arista:extensible_operating_system:4.22.1f:*:*:*:*:*:*:*
cpe:2.3:h:arista:7020r:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7280e:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7280r:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7280r2:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7500e:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7500r:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7500r2:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools