CVE-2018-4002
CVSS V2 High 7.8
CVSS V3 High 7.5
Description
An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack, crashing the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.
Overview
- CVE ID
- CVE-2018-4002
- Assigner
- talos-cna@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-31T21:15:12
- Last Modified Date
- 2023-02-03T01:55:03
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cujo:smart_firewall_firmware:7003:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cujo:smart_firewall:-:*:*:*:*:*:*:* | 0 | 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: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
| Reference URL | Reference Tags |
|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2018-0671 | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-4002 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4002 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 17:01:19 | Added to TrackCVE | |||
| 2022-12-04 05:17:33 | 2019-10-31T21:15Z | 2019-10-31T21:15:12 | CVE Published Date | updated |
| 2022-12-04 05:17:33 | 2022-04-19T18:15:42 | CVE Modified Date | updated | |
| 2022-12-04 05:17:33 | Undergoing Analysis | Vulnerability Status | updated | |
| 2023-02-03 02:08:31 | 2023-02-03T01:55:03 | CVE Modified Date | updated | |
| 2023-02-03 02:08:31 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |