CVE-2021-0308
Description
An out-of-bounds write flaw was found in gdisks' ReadLogicalParts() function of 'basicmbr.cc'. The exploitation of this flaw requires the use of a malicious storage device (for example, a USB Stick) that can cause a crash when physically inserted into the system and possible local privilege escalation. This flaw allows an attacker to compromise confidentiality, integrity, and data availability.
Statement
This vulnerability does affect Red Hat Enterprise Linux 6, 7, and 8 because our code-base is vulnerable to this issue.
Red Hat Product Security has rated this issue as a Moderate security impact and the issue is not currently planned to be addressed in future updates for Red Hat Enterprise Linux 6 and 7, hence, marked as Out-of-Support-Scope. For additional information, refer to the Red Hat Enterprise Linux Life Cycle & Update Policy: https://access.redhat.com/support/policy/updates/errata/.
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 | 6.8 | 6.8 | N/A |
| Attack Vector | Physical | Physical | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | 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:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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