CVE-2021-28089
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
Overview
- CVE ID
- CVE-2021-28089
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-19T05:15:12
- Last Modified Date
- 2022-05-16T21:06:51
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.3.5.14 | |
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.4.4.4 | 0.4.4.8 |
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.4.5.0 | 0.4.5.7 |
| cpe:2.3:a:torproject:tor:0.4.4.0:alpha:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:torproject:tor:0.4.4.1:alpha:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:torproject:tor:0.4.4.2:alpha:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:torproject:tor:0.4.4.3:alpha:*:*:*:*:*:* | 1 | OR | ||
| 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 |
|---|---|
| https://gitlab.torproject.org/tpo/core/tor/-/issues/40304 | Vendor Advisory |
| https://blog.torproject.org/node/2009 | Release Notes Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202107-25 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-28089 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28089 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:07:40 | Added to TrackCVE | |||
| 2022-12-06 00:05:08 | 2021-03-19T05:15Z | 2021-03-19T05:15:12 | CVE Published Date | updated |
| 2022-12-06 00:05:08 | 2022-05-16T21:06:51 | CVE Modified Date | updated | |
| 2022-12-06 00:05:08 | Analyzed | Vulnerability Status | updated |