CVE-2020-15703
CVSS V2 Low 2.1
CVSS V3 Low 3.3
Description
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
Overview
- CVE ID
- CVE-2020-15703
- Assigner
- security@ubuntu.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-10-31T04:15:10
- Last Modified Date
- 2020-11-17T18:37:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:aptdaemon_project:aptdaemon:1.1.1:bzr982-0ubuntu14.4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:aptdaemon_project:aptdaemon:1.1.1:bzr982-0ubuntu19.4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:aptdaemon_project:aptdaemon:1.1.1:bzr982-0ubuntu32.2:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 3.3
- Base Severity
- LOW
- Exploitability Score
- 1.8
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html | Exploit Third Party Advisory |
| https://ubuntu.com/security/notices/USN-4537-1 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15703 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15703 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:19:39 | Added to TrackCVE | |||
| 2022-12-05 15:54:04 | 2020-10-31T04:15Z | 2020-10-31T04:15:10 | CVE Published Date | updated |
| 2022-12-05 15:54:04 | 2020-11-17T18:37:11 | CVE Modified Date | updated | |
| 2022-12-05 15:54:04 | Analyzed | Vulnerability Status | updated |