FKIE_CVE-2025-8067
Vulnerability from fkie_nvd - Published: 2025-08-28 15:16 - Updated: 2025-11-04 22:16
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"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\u0027t 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": "2025-11-04T22:16:44.560",
"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": "secalert@redhat.com",
"type": "Secondary"
}
]
},
"published": "2025-08-28T15:16:03.600",
"references": [
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:15017"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:15018"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:15020"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:15956"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16021"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16090"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16106"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16121"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16122"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16125"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:16130"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/security/cve/CVE-2025-8067"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388623"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2025/08/28/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00023.html"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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