CVE-2026-47333

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=635fa30ed9e944bdb7e811fb8a8906286b4b4f06	Patch

Configurations

Configuration 1 (hide)

OR	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:::::::*

History

No history.

Information

Published : 2026-05-28 19:16

Updated : 2026-06-17 10:54

NVD link : CVE-2026-47333

Mitre link : CVE-2026-47333

CVE.ORG link : CVE-2026-47333

JSON object : View

Products Affected

canonical

ubuntu_linux

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2026-47333", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47333", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-28T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@ubuntu.com", "affectedData": [{"repo": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/", "vendor": "Canonical", "modules": ["AppArmor"], "product": "Ubuntu Linux", "versions": [{"status": "affected", "version": "6.8.0", "lessThan": "6.8.0-124.124", "versionType": "dpkg"}, {"status": "affected", "version": "6.17.0", "lessThan": "6.17.0-35.35", "versionType": "dpkg"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.0.0-22.22", "versionType": "dpkg"}], "packageName": "linux", "collectionURL": "https://launchpad.net/ubuntu/+source/", "defaultStatus": "unaffected"}]}], "published": "2026-05-28T19:16:42.073", "references": [{"url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=635fa30ed9e944bdb7e811fb8a8906286b4b4f06", "tags": ["Patch"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine."}], "lastModified": "2026-06-17T10:54:31.563", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62D1BEC7-1A71-4991-A1A5-0E3D282100EC"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "68D562DD-F22D-4310-93C7-7DE817104CAC"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:26.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BB2642A-AA54-4949-A9FC-0E9673539350"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}