CVE-2020-27777
- Source
- https://cve.org/CVERecord?id=CVE-2020-27777
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27777.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-27777
- Downstream
- Related
- Published
- 2020-12-15T17:15:14.333Z
- Modified
- 2026-03-13T00:38:49.343656Z
- Severity
-
- 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.
- References
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.14.204"
}
]
},
{
"events": [
{
"introduced": "4.15"
},
{
"fixed": "4.19.155"
}
]
},
{
"events": [
{
"introduced": "4.20"
},
{
"fixed": "5.4.75"
}
]
},
{
"events": [
{
"introduced": "5.5"
},
{
"fixed": "5.9.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "4.6"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "6.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27777.json"