CVE-2020-24340
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The code that processes DNS responses in pico_mdns_handle_data_as_answers_generic() in pico_mdns.c does not check whether the number of answers/responses specified in a DNS packet header corresponds to the response data available in the packet, leading to an out-of-bounds read, invalid pointer dereference, and Denial-of-Service.
Overview
- CVE ID
- CVE-2020-24340
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-12-11T23:15:14
- Last Modified Date
- 2020-12-14T21:29:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:* | 1 | OR | 1.7.0 | |
| cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:* | 1 | OR | 1.7.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
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://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 | Third Party Advisory US Government Resource |
| https://www.kb.cert.org/vuls/id/815128 | Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-24340 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24340 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:30:26 | Added to TrackCVE | |||
| 2022-12-05 18:07:26 | 2020-12-11T23:15Z | 2020-12-11T23:15:14 | CVE Published Date | updated |
| 2022-12-05 18:07:26 | 2020-12-14T21:29:11 | CVE Modified Date | updated | |
| 2022-12-05 18:07:27 | Analyzed | Vulnerability Status | updated |