CVE-2023-6176

Kernel: local dos vulnerability in scatterwalk_copychunks

MEDIUM
4.7
CVSS Score
Published: November 16, 2023 at 05:15 PM UTC
Updated: June 17, 2026 at 06:50 AM UTC
2 products affected across 2 vendorsLinux KernelEnterprise Linux

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.

Affected

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

All versions
Vendor states this is fixed in 0:4.18.0-553.el8_10 (unaffected)
Vendor states this is fixed in 0:4.18.0-553.rt7.342.el8_10 (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)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

4.7MEDIUMredhat
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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