CVE-2024-0565

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

HIGH
7.4
CVSS Score
Published: January 15, 2024 at 08:02 PM UTC
Updated: August 10, 2026 at 10:17 PM UTC
3 products affected across 3 vendorsLinux KernelOntap ToolsEnterprise Linux

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Severity
HIGH7.4
Exploit prediction
EPSS 2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.19 ≤ v < 5.10.2115.11 ≤ v < 5.15.1505.16 ≤ v < 6.1.696.1.36 ≤ v < 6.76.2 ≤ v < 6.6.84.195.115.166.26.7 rc16.7 rc26.7 rc36.7 rc46.7 rc5
Affected range stops below 5.10.211, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.150, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.69, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.6.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.7, so it looks safe — our inference, not a vendor statement
All versions
Vendor states this is fixed in 0:4.18.0-372.95.1.el8_6 (unaffected)
Vendor states this is fixed in 0:4.18.0-477.51.1.el8_8 (unaffected)
Vendor states this is fixed in 0:4.18.0-513.24.1.el8_9 (unaffected)
Vendor states this is fixed in 0:4.18.0-513.24.1.rt7.326.el8_9 (unaffected)
Vendor states this is fixed in 0:5.14.0-284.59.1.el9_2 (unaffected)
Vendor states this is fixed in 0:5.14.0-284.59.1.rt14.344.el9_2 (unaffected)
Vendor states this is fixed in 0:5.14.0-427.13.1.el9_4 (unaffected)
Vendor states this is fixed in 6 (unaffected)
Vendor states this is fixed in 7 (unaffected)

References (13)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-191

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