CVE Database›Document archive›CVE-2021-46960

CVE-2021-46960

kernel: cifs: Return correct error code from smb2_get_enc_key

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · February 27, 2024

Updated · October 17, 2026

Description

A flaw was found in the Linux kernel's Common Internet File System (CIFS) implementation. An incorrect error code is returned when the client fails to retrieve an encryption key during encrypted file communications. A local user can exploit this issue during file operations to trigger a kernel warning, potentially causing system instability or a Denial of Service (DoS).

Statement

No Red Hat Products are affected by this vulnerability.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-393 · Return of Wrong Status Code