CVE-2024-0565: Kernel: cifs filesystem decryption improper input validation remote code execution vulnerability in function receive_encrypted_standard of client

Severity: high (CVSS 7.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-15 · updated 2026-08-10
Weakness: CWE-191

Description

An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service.

Affected products

Linux kernel: from 6.1.36 before 6.7; 6.7-rc1, 6.7-rc2, 6.7-rc3, 6.7-rc4, 6.7-rc5 — fixed in 6.7
NetApp Ontap Tools: all versions

How to fix

Upgrade to a fixed version: Linux kernel 6.7. Check the vendor advisory for mitigations.

References

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