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Vulnerability Details : CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.
Publish Date : 2018-07-26 Last Update Date : 2018-11-30
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 264

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:2390: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20182390 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-10901

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel - Version Details Vulnerabilities
2 OS Redhat Enterprise Linux Desktop 6.0 Version Details Vulnerabilities
3 OS Redhat Enterprise Linux Server 6.0 Version Details Vulnerabilities
4 OS Redhat Enterprise Linux Server Aus 6.4 Version Details Vulnerabilities
5 OS Redhat Enterprise Linux Server Aus 6.5 Version Details Vulnerabilities
6 OS Redhat Enterprise Linux Server Aus 6.6 Version Details Vulnerabilities
7 OS Redhat Enterprise Linux Workstation 6.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Server Aus 3
Redhat Enterprise Linux Workstation 1

- References For CVE-2018-10901

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36 CONFIRM
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901 CONFIRM
https://access.redhat.com/errata/RHSA-2018:2392
REDHAT RHSA-2018:2392
https://access.redhat.com/errata/RHSA-2018:2394
REDHAT RHSA-2018:2394
http://www.securityfocus.com/bid/104905
BID 104905 Linux Kernel CVE-2018-10901 Local Privilege Escalation Vulnerability Release Date:2018-07-26
https://access.redhat.com/errata/RHSA-2018:2390
REDHAT RHSA-2018:2390
https://access.redhat.com/errata/RHSA-2018:2391
REDHAT RHSA-2018:2391
https://access.redhat.com/errata/RHSA-2018:2393
REDHAT RHSA-2018:2393

- Metasploit Modules Related To CVE-2018-10901

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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