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-2021-21281 | First vendor Publication | 2021-06-18 |
| Vendor | Cve | Last vendor Modification | 2021-06-24 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 9.8 | ||
| Base Score | 9.8 | Environmental Score | 9.8 |
| impact SubScore | 5.9 | Temporal Score | 9.8 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | 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:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 7.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21281 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 | |
| Os | 2 |
Sources (Detail)
| Source | Url |
|---|---|
| CONFIRM | https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp |
| MISC | https://github.com/contiki-ng/contiki-ng/pull/1366 |
Alert History
| Date | Informations |
|---|---|
| 2021-06-24 21:23:10 |
|
| 2021-06-21 21:23:08 |
|
| 2021-06-21 17:22:48 |
|
| 2021-06-19 05:22:49 |
|
