CVE-2026-47329
Analyzed Analyzed - Analysis Complete
AppArmor Notification Size Validation Flaw in Ubuntu Linux

Publication date: 2026-05-28

Last updated on: 2026-06-09

Assigner: Canonical Ltd.

Description
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.
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Meta Information
Published
2026-05-28
Last Modified
2026-06-09
Generated
2026-06-18
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
CVE-2026-47329
EUVD
EUVD-2026-32984
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
canonical ubuntu_linux 24.04
canonical ubuntu_linux 25.10
canonical ubuntu_linux 26.04
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
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Executive Summary

This vulnerability exists in Ubuntu Linux versions 6.8, 6.17, and 7.0 where SAUCE patches fail to properly validate invalid sizes of the name field in AppArmor notification responses.

An unprivileged local user can trigger this bug by crafting specific responses that exploit this validation failure.

Impact Analysis

The vulnerability could allow an unprivileged local user to handle crafted AppArmor notification responses improperly, potentially leading to limited integrity issues.

According to the CVSS score (3.3), the impact is low severity with no confidentiality or availability impact, but it may affect system integrity.

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