Vulnerability Name:

CVE-2018-10901 (CCN-147862)

Assigned:2010-08-02
Published:2010-08-02
Updated:2023-02-24
Summary: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.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-665
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2018-10901

Source: CCN
Type: IBM Security Bulletin 872470 (Security Guardium)
IBM Security Guardium is affected by Red Hat kernel vulnerabilities

Source: CCN
Type: BID-104905
Linux Kernel CVE-2018-10901 Local Privilege Escalation Vulnerability

Source: secalert@redhat.com
Type: Third Party Advisory, VDB Entry
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
linux-kenrel-cve201810901-priv-esc(147862)

Source: CCN
Type: Linux Kernel GIT Repository
KVM: VMX: Fix host GDT.LIMIT corruption

Source: secalert@redhat.com
Type: Patch, Vendor Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch, Third Party Advisory
secalert@redhat.com

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-10901

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::client:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:6::computenode:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:6::workstation:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.17:-:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:security_guardium:10.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_guardium:10.6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20182390
    P
    		RHSA-2018:2390: kernel security and bug fix update (Important)
    2018-08-16
    oval:com.ubuntu.bionic:def:2018109010000000
    V
    		CVE-2018-10901 on Ubuntu 18.04 LTS (bionic) - high.
    2018-07-26
    oval:com.ubuntu.bionic:def:201810901000
    V
    		CVE-2018-10901 on Ubuntu 18.04 LTS (bionic) - high.
    2018-07-26
    oval:com.ubuntu.xenial:def:2018109010000000
    V
    		CVE-2018-10901 on Ubuntu 16.04 LTS (xenial) - high.
    2018-07-26
    oval:com.ubuntu.trusty:def:201810901000
    V
    		CVE-2018-10901 on Ubuntu 14.04 LTS (trusty) - high.
    2018-07-26
    oval:com.ubuntu.xenial:def:201810901000
    V
    		CVE-2018-10901 on Ubuntu 16.04 LTS (xenial) - high.
    2018-07-26
    BACK
    linux linux kernel 4.17
    ibm security guardium 10.0
    ibm security guardium 10.6