Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2020-3179

Severity CVSS v4.0:
Pending analysis
Type:
CWE-415 Double Free
Publication date:
06/05/2020
Last modified:
12/05/2020

Description

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory handling error when GRE over IPv6 traffic is processed. An attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.

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:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.3.0 (including) 6.3.0.5 (excluding)
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.4.0 (including) 6.4.0.6 (excluding)
cpe:2.3:o:cisco:asa_5505_firmware:9.9\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5505_firmware:101.5\(1.26\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5510_firmware:9.9\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5510_firmware:101.5\(1.26\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5512-x_firmware:9.9\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5512-x_firmware:101.5\(1.26\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5515-x_firmware:9.9\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5515-x_firmware:101.5\(1.26\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asa_5520_firmware:9.9\(2\):*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools