CVE-2026-47329

Incorrect validation of field size in Ubuntu Linux AppArmor notification responses

Published May 28, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

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
Ubuntu USN Ubuntu USN USN-8489-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-8497-1 Linux kernel (Low Latency) vulnerabilities
Ubuntu USN Ubuntu USN USN-8499-1 Linux kernel (Xilinx) vulnerabilities
Ubuntu USN Ubuntu USN USN-8569-1 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-8393-1 Linux kernel (Azure FIPS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8461-1 Linux kernel (Azure) vulnerabilities
History
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:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Canonical
Canonical ubuntu Linux
Vendors & Products Canonical
Canonical ubuntu Linux
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Incorrect validation of field size in Ubuntu Linux AppArmor notification responses
Weaknesses CWE-1284
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
May 28, 2026, 7:24 PM
Reserved
May 19, 2026, 10:37 AM
Status
Analyzed
Published
May 28, 2026, 7:16 PM
Modified
Oct 26, 2026, 12:10 AM