CVE-2020-26521
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
Overview
- CVE ID
- CVE-2020-26521
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-11-06T08:15:13
- Last Modified Date
- 2022-01-01T18:18:02
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:* | 1 | OR | 2.1.9 | |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/02/2 | Mailing List Third Party Advisory |
| https://github.com/nats-io/nats-server/commits/master | Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VT67XCLIIBYRT762SVFBYFFTQFVSM3SI/ | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-26521 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26521 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:39:46 | Added to TrackCVE | |||
| 2022-12-05 16:12:39 | 2020-11-06T08:15Z | 2020-11-06T08:15:13 | CVE Published Date | updated |
| 2022-12-05 16:12:39 | 2022-01-01T18:18:02 | CVE Modified Date | updated | |
| 2022-12-05 16:12:40 | Analyzed | Vulnerability Status | updated |