CVE-2026-47337

NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation

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 with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

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:6.17:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:6.8:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:7.0:*:*:*:*:*:*:*
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 with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.
Title NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation
Weaknesses CWE-476
References
Metrics cvssV3_1

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

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