CVE-2026-47332

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

State: Published
Severity: 5.5 Medium
Published: May 28, 2026
Updated: May 28, 2026
Reserved: May 19, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	canonical

Weaknesses

CWE-125 Out-of-bounds read

Affected Products

Product	Versions
Ubuntu LinuxCanonical	6.8.0 to before 6.8.0-124.124Affected 6.17.0 to before 6.17.0-35.35Affected 7.0.0 to before 7.0.0-22.22Affected

References

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=0418e5f61b55465f19245705bce6590c807fc9f2patch

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