- Description
- Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.
- Source
- cve@mitre.org
- NVD status
- Deferred
CVSS 3.0
- Type
- Primary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 9.4
- Impact score
- 9.2
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:C/I:N/A:C
- nvd@nist.gov
- CWE-476
- Hype score
- Not currently trending
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7494A471-EEFC-44F4-96B1-FDBA3B780313",
"versionEndIncluding": "4.8.1"
}
],
"operator": "OR"
}
]
}
]