Executive Summary
This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-17437 | First vendor Publication | 2020-12-11 |
| Vendor | Cve | Last vendor Modification | 2022-08-08 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 8.2 | ||
| Base Score | 8.2 | Environmental Score | 8.2 |
| impact SubScore | 4.2 | Temporal Score | 8.2 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | Low |
| Integrity Impact | None | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 6.4 | Attack Range | Network |
| Cvss Impact Score | 4.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. When the Urgent flag is set in a TCP packet, and the stack is configured to ignore the urgent data, the stack attempts to use the value of the Urgent pointer bytes to separate the Urgent data from the normal data, by calculating the offset at which the normal data should be present in the global buffer. However, the length of this offset is not checked; therefore, for large values of the Urgent pointer bytes, the data pointer can point to memory that is way beyond the data buffer in uip_process in uip.c. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17437 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 | |
| Os | 1 |
Sources (Detail)
| Source | Url |
|---|---|
| CONFIRM | https://cert-portal.siemens.com/productcert/pdf/ssa-541018.pdf |
| MISC | https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 https://www.kb.cert.org/vuls/id/815128 |
Alert History
| Date | Informations |
|---|---|
| 2022-08-08 21:27:36 |
|
| 2022-08-06 09:27:42 |
|
| 2021-03-26 12:33:36 |
|
| 2020-12-15 21:23:45 |
|
| 2020-12-14 17:22:47 |
|
| 2020-12-12 05:22:49 |
|
