CVE-2021-20095
Description
A flaw was found in python-babel. A path traversal vulnerability was found in how locale data files are checked and loaded within python-babel, allowing a local attacker to trick an application that uses python-babel to load a file outside of the intended locale directory. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.
Statement
It is rather uncommon for applications to use Babel.Locale() with an untrusted attacker-controlled language argument. A static language abbreviation string (e.g. "en") is most commonly used instead. For this reason, this flaw has been rated as having a security impact of Moderate.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.8 | 7.8 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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