CVE-2026-47332

MEDIUM

Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Title source: cna

Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.

References (1)

Core 1

Core References

Patch patch

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=0418e5f61b55465f19245705bce6590c807fc9f2

Scores

CVSS v3 5.5

EPSS 0.0011

EPSS Percentile 1.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (6)

Canonical/Ubuntu Linux 6.17.0 - 6.17.0-35.35

Canonical/Ubuntu Linux 6.8.0 - 6.8.0-124.124

Canonical/Ubuntu Linux 7.0.0 - 7.0.0-22.22

canonical/ubuntu_linux 24.04

canonical/ubuntu_linux 25.10

canonical/ubuntu_linux 26.04

Published May 28, 2026

Tracked Since May 29, 2026