Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-30639 | First vendor Publication | 2021-07-12 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.5 | ||
| Base Score | 7.5 | Environmental Score | 7.5 |
| impact SubScore | 3.6 | Temporal Score | 7.5 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| 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:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A vulnerability in Apache Tomcat allows an attacker to remotely trigger a denial of service. An error introduced as part of a change to improve error handling during non-blocking I/O meant that the error flag associated with the Request object was not reset between requests. This meant that once a non-blocking I/O error occurred, all future requests handled by that request object would fail. Users were able to trigger non-blocking I/O errors, e.g. by dropping a connection, thereby creating the possibility of triggering a DoS. Applications that do not use non-blocking I/O are not exposed to this vulnerability. This issue affects Apache Tomcat 10.0.3 to 10.0.4; 9.0.44; 8.5.64. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30639 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-755 | Improper Handling of Exceptional Conditions |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:34:32 |
|
| 2022-10-27 09:27:44 |
|
| 2022-08-21 13:27:41 |
|
| 2022-04-24 01:57:05 |
|
| 2022-03-01 21:23:25 |
|
| 2022-02-07 21:23:16 |
|
| 2021-12-10 09:23:07 |
|
| 2021-10-22 13:23:14 |
|
| 2021-09-22 00:23:10 |
|
| 2021-08-27 13:23:05 |
|
| 2021-07-16 00:22:49 |
|
| 2021-07-14 01:41:34 |
|
| 2021-07-14 01:41:16 |
|
| 2021-07-13 17:22:50 |
|
| 2021-07-12 21:23:11 |
|
