CVE-2021-43980
CVSS V2 None
CVSS V3 Low 3.7
Description
The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.
Overview
- CVE ID
- CVE-2021-43980
- Assigner
- security@apache.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-09-28T14:15:09
- Last Modified Date
- 2022-11-10T04:00:03
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 1 | OR | 8.5.0 | 8.5.77 |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0 | 9.0.60 |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 1 | OR | 10.0.0 | 10.0.18 |
| cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 3.7
- Base Severity
- LOW
- Exploitability Score
- 2.2
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/09/28/1 | Mailing List Third Party Advisory |
| https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 | Mailing List Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5265 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43980 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43980 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-09-28 16:00:09 | Added to TrackCVE | |||
| 2022-12-07 05:03:51 | 2022-09-28T14:15Z | 2022-09-28T14:15:09 | CVE Published Date | updated |
| 2022-12-07 05:03:51 | 2022-11-10T04:00:03 | CVE Modified Date | updated | |
| 2022-12-07 05:03:51 | Analyzed | Vulnerability Status | updated | |
| 2022-12-07 05:03:56 | References | updated |