Overview
- Description
- A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching host's qemu address space and thus increase their privileges on the host.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.9
- Impact score
- 10
- Exploitability score
- 3.4
- Vector string
- AV:L/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
- nvd@nist.gov
- CWE-269
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
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"vulnerable": true,
"matchCriteriaId": "6265D005-1DD4-4CE2-89E1-01EC33046D1F",
"versionEndIncluding": "1.4.2",
"versionStartIncluding": "1.3.0"
},
{
"criteria": "cpe:2.3:a:qemu:qemu:1.5.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35B1E3F1-4647-47FF-9546-0742F10B607B"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
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"cpeMatch": [
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"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
}
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{
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{
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]