CVE-2021-40114
CVSS V2 High 7.8
CVSS V3 High 7.5
Description
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
Overview
- CVE ID
- CVE-2021-40114
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2021-10-27T19:15:08
- Last Modified Date
- 2023-02-19T04:15:12
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_management_center:2.9.15:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.4.0.12 | |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.5.0 | 6.6.3 |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.7.0 | 6.7.0.2 |
| cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 16.12 | 16.12.6 |
| cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 17.3 | 17.3.4a |
| cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 17.4 | 17.4.2 |
| cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:* | 1 | OR | 2.0.0 | 2.9.18 |
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:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-40114 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40114 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:49:09 | Added to TrackCVE | |||
| 2022-12-05 13:22:12 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 13:22:12 | 2021-10-27T19:15Z | 2021-10-27T19:15:08 | CVE Published Date | updated |
| 2022-12-05 13:22:12 | 2021-10-29T13:15:39 | CVE Modified Date | updated | |
| 2022-12-05 13:22:12 | Analyzed | Vulnerability Status | updated | |
| 2023-02-11 03:14:19 | 2023-02-11T02:20:44 | CVE Modified Date | updated | |
| 2023-02-11 03:14:19 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-11 03:14:19 | Weakness Enumeration | update | ||
| 2023-02-11 03:14:19 | References | updated | ||
| 2023-02-19 04:15:51 | 2023-02-19T04:15:12 | CVE Modified Date | updated | |
| 2023-02-19 04:15:51 | References | updated |