Description
Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.
Published: 2026-05-28
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8370-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8371-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8373-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8374-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8440-1 Linux kernel (Azure) vulnerabilities
History

Tue, 09 Jun 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:26.04:*:*:*:*:*:*:*

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, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.
Title Out-of-bounds read in Ubuntu Linux AppArmor notification handling
Weaknesses CWE-125
References
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'}


Subscriptions

Canonical Ubuntu Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2026-05-29T03:55:52.758Z

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

Link: CVE-2026-47333

cve-icon Vulnrichment

Updated: 2026-05-28T19:23:59.983Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-28T19:16:42.073

Modified: 2026-06-09T14:40:46.917

Link: CVE-2026-47333

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T20:30:25Z

Weaknesses