CVE-2026-47331 - Vulnerability Details - OpenCVE

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Canonical	Ubuntu Linux

No data.

No data.

References

Link	Providers
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=5e5cd4759b63363373faf1ce15d1cab3606d6ec8

History

Thu, 28 May 2026 20:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Canonical Canonical ubuntu Linux
Vendors & Products		Canonical Canonical ubuntu Linux

Thu, 28 May 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 28 May 2026 19:00:00 +0000

Type	Values Removed	Values Added
Description		Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.
Title		Use-after-free in Ubuntu Linux AppArmor notification handling
Weaknesses		CWE-416
References		https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=5e5cd4759b63363373faf1ce15d1cab3606d6ec8
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: canonical

Published: 2026-05-28T18:28:08.987Z

Updated: 2026-05-29T03:55:53.852Z

Reserved: 2026-05-19T10:37:36.433Z

Link: CVE-2026-47331

Vulnrichment

Updated: 2026-05-28T19:24:27.828Z

NVD

Status : Awaiting Analysis

Published: 2026-05-28T19:16:41.757

Modified: 2026-05-29T02:45:36.283

Link: CVE-2026-47331

Redhat

No data.

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