CVE-2018-0491
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.
Overview
- CVE ID
- CVE-2018-0491
- Assigner
- security@debian.org
- Vulnerability Status
- Analyzed
- Published Version
- 2018-03-05T15:29:00
- Last Modified Date
- 2019-03-26T18:52:49
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.3.2.0 | 0.3.2.10 |
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
- 3.0
- Vector String
- CVSS:3.0/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://trac.torproject.org/projects/tor/ticket/25117 | Issue Tracking Patch Vendor Advisory |
| https://trac.torproject.org/projects/tor/ticket/24700 | Issue Tracking Mitigation Vendor Advisory |
| https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915 | Vendor Advisory |
| https://www.exploit-db.com/exploits/44994/ | Exploit Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-0491 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0491 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:45:04 | Added to TrackCVE | |||
| 2022-12-03 02:59:12 | 2018-03-05T15:29Z | 2018-03-05T15:29:00 | CVE Published Date | updated |
| 2022-12-03 02:59:12 | 2019-03-26T18:52:49 | CVE Modified Date | updated | |
| 2022-12-03 02:59:12 | Analyzed | Vulnerability Status | updated |