CVE-2020-3373
CVSS V2 High 7.8
CVSS V3 High 8.6
Description
A vulnerability in the IP fragment-handling implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak on an affected device. This memory leak could prevent traffic from being processed through the device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper error handling when specific failures occur during IP fragment reassembly. An attacker could exploit this vulnerability by sending crafted, fragmented IP traffic to a targeted device. A successful exploit could allow the attacker to continuously consume memory on the affected device and eventually impact traffic, resulting in a DoS condition. The device could require a manual reboot to recover from the DoS condition. Note: This vulnerability applies to both IP Version 4 (IPv4) and IP Version 6 (IPv6) traffic.
Overview
- CVE ID
- CVE-2020-3373
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-10-21T19:15:15
- Last Modified Date
- 2020-10-29T12:58:18
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:adaptive_security_appliance:9.8.4.22:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:adaptive_security_appliance:9.8.4.25:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:adaptive_security_appliance:9.12.4.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:adaptive_security_appliance:9.12.4.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:adaptive_security_appliance:9.13.1.12:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:adaptive_security_appliance:9.14.1.15:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_threat_defense:6.6.0.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 7.8
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 8.6
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-frag-memleak-mCtqdP9n | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3373 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3373 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:21:47 | Added to TrackCVE | |||
| 2022-12-05 00:45:35 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 00:45:35 | 2020-10-21T19:15Z | 2020-10-21T19:15:15 | CVE Published Date | updated |
| 2022-12-05 00:45:35 | 2020-10-29T12:58:18 | CVE Modified Date | updated | |
| 2022-12-05 00:45:35 | Analyzed | Vulnerability Status | updated |