CVE-2015-2689
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.
Overview
- CVE ID
- CVE-2015-2689
- Assigner
- security@debian.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-01-24T18:15:12
- Last Modified Date
- 2020-01-31T21:16:30
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.2.4.26 | |
| cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* | 1 | OR | 0.2.5.1 | 0.2.5.11 |
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://trac.torproject.org/projects/tor/ticket/14129 | Patch Vendor Advisory |
| https://lists.torproject.org/pipermail/tor-talk/2015-March/037281.html | Mailing List Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2015-2689 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2689 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:51:20 | Added to TrackCVE | |||
| 2022-12-04 10:04:25 | 2020-01-24T18:15Z | 2020-01-24T18:15:12 | CVE Published Date | updated |
| 2022-12-04 10:04:25 | 2020-01-31T21:16:30 | CVE Modified Date | updated | |
| 2022-12-04 10:04:25 | Analyzed | Vulnerability Status | updated |