CVE-2026-47336

Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules

Published May 28, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8373-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8440-1 Linux kernel (Azure) 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-8393-1 Linux kernel (Azure FIPS) vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:o:canonical:ubuntu_linux:6.8:*:*:*:*:*:*:*
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 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.
Title Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules
Weaknesses CWE-457
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, 7:23 PM
Reserved
May 19, 2026, 10:37 AM
Status
Analyzed
Published
May 28, 2026, 7:16 PM
Modified
Oct 14, 2026, 8:10 PM