CVE-2020-27777
Summary
| CVE | CVE-2020-27777 |
|---|
| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2020-12-15 17:15:00 UTC |
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| Updated | 2023-10-05 14:29:00 UTC |
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| Description | 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. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| kernel/git/powerpc/linux.git - The powerpc tree |
MISC |
git.kernel.org |
Exploit, Patch, Vendor Advisory |
| oss-security - Re: Linux kernel: powerpc: RTAS calls can be used to compromise
kernel integrity |
MISC |
www.openwall.com |
Mailing List, Third Party Advisory |
| 1900844 – (CVE-2020-27777) CVE-2020-27777 kernel: powerpc: RTAS calls can be used to compromise kernel integrity |
MISC |
bugzilla.redhat.com |
Issue Tracking, Patch, Third Party Advisory |
| oss-security - Linux kernel: powerpc: RTAS calls can be used to compromise kernel
integrity |
MISC |
www.openwall.com |
Exploit, Mailing List, Patch, Third Party Advisory |
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159375 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-3327)
- 159492 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-4356)
- 239603 Red Hat Update for kernel (RHSA-2021:3327)
- 239816 Red Hat Update for kernel security (RHSA-2021:4356)
- 257109 CentOS Security Update for kernel (CESA-2021:3327)
- 375284 EulerOS Security Update for kernel (EulerOS-SA-2021-1311)
- 670185 EulerOS Security Update for kernel (EulerOS-SA-2021-1684)
- 670269 EulerOS Security Update for kernel (EulerOS-SA-2021-1808)
- 750376 OpenSUSE Security Update for RT kernel (openSUSE-SU-2021:0242-1)
- 750428 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0075-1)
- 750434 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0060-1)
- 750488 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2020:2260-1)
- 750508 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2020:2193-1)
- 750518 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2020:2161-1)
- 900040 CBL-Mariner Linux Security Update for kernel 5.4.91
- 903436 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3700)
- 906092 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3700-1)
- 940265 AlmaLinux Security Update for kernel (ALSA-2021:4356)
