CVE-2020-14382
Description
A flaw was found in the way cryptsetup parses encrypted images with invalid segments. This flaw allows a local attacker to crash an application compiled with cryptsetup, or in some cases, cause arbitrary code execution when parsing specially crafted encrypted images. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Statement
This flaw was introduced in upstream release cryptsetup-2.2.0, with the inclusion of the LUKS2 re-encryption code. This feature is not available in Red Hat Enterprise Linux 7, therefore it is not affected by this flaw.
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 | None | None | N/A |
| User Interaction | Required | Required | 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:N/UI:R/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Acknowledgements
Red Hat would like to thank Tobias Stoeckmann for reporting this issue.
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