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D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2025-09-18T03:19:27.517Z"}, "x_redhatCweChain": "CWE-125: Out-of-bounds Read"}}, "cveMetadata": {"cveId": "CVE-2025-8067", "state": "PUBLISHED", "dateUpdated": "2025-09-18T03:19:27.517Z", "dateReserved": "2025-07-22T22:54:45.533Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2025-08-28T14:47:08.578Z", "assignerShortName": "redhat"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users."}], "id": "CVE-2025-8067", "lastModified": "2025-09-18T15:15:39.607", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.3, "source": "[email protected]", "type": "Secondary"}]}, "published": "2025-08-28T15:16:03.600", "references": [{"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:15017"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:15018"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:15020"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:15956"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16021"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16090"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16106"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16121"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16122"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16125"}, {"source": "[email protected]", "url": "https://access.redhat.com/errata/RHSA-2025:16130"}, {"source": "[email protected]", "url": "https://access.redhat.com/security/cve/CVE-2025-8067"}, {"source": "[email protected]", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388623"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "[email protected]", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Michael Imfeld (born0monday) for reporting this issue.", "bugzilla": {"description": "udisks: Out-of-bounds read in UDisks Daemon", "id": "2388623", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388623"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users."], "mitigation": {"lang": "en:us", "value": "There's no available mitigation other than installing the updated package as soon as available."}, "name": "CVE-2025-8067", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "udisks2", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "udisks", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "udisks2", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "udisks2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "udisks2", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-08-28T14:42:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-8067\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-8067"], "statement": "This vulnerability has been rated with an Important severity by the Red Hat Product Security team. This is due to the low complexity to exploit it and the possible local privilege execution risk associated to a successful exploitation of this flaw.", "threat_severity": "Important"}