CVE-2021-21439
CVSS V2 Medium 4.3
CVSS V3 Medium 6.5
Description
DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions.
Overview
- CVE ID
- CVE-2021-21439
- Assigner
- security@otrs.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-14T08:15:10
- Last Modified Date
- 2021-06-29T16:52:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:* | 1 | OR | 6.0.1 | 6.0.30 |
| cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.0.27 |
| cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:* | 1 | OR | 8.0.0 | 8.0.14 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://otrs.com/release-notes/otrs-security-advisory-2021-09/ | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-21439 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21439 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:09:26 | Added to TrackCVE | |||
| 2022-12-05 04:23:03 | 2021-06-14T08:15Z | 2021-06-14T08:15:10 | CVE Published Date | updated |
| 2022-12-05 04:23:03 | 2021-06-29T16:52:41 | CVE Modified Date | updated | |
| 2022-12-05 04:23:03 | Analyzed | Vulnerability Status | updated |