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TI-2018-07714 Aliases CVE-2018-10901GHSA-8j5h-gvcc-pfhw

A flaw was found in Linux kernel's KVM virtualization subsystem.

Priority LOW 35CWE-665Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

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.

Why it matters now

EPSS 0.0052 44th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]kernel:all versions—No fix listedCNA
  • kernel: Vendor[UNKNOWN] Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 2.6.36VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:*6.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*6.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*6.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.36 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat

Remediation

Red Hat 5 advisories

  • RHSA-2018:2391 Released 2018-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.7) kernel-2.6.32-573.60.4.el6, kernel-abi-whitelists-2.6.32-573.60.4.el6, kernel-debug-2.6.32-573.60.4.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) python-perf-2.6.32-573.60.4.el6
    • Red Hat Enterprise Linux Server EUS (v. 6.7) kernel-2.6.32-573.60.4.el6, kernel-abi-whitelists-2.6.32-573.60.4.el6, kernel-bootwrapper-2.6.32-573.60.4.el6 +9
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.7) python-perf-2.6.32-573.60.4.el6
  • RHSA-2018:2393 Released 2018-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 6.5) kernel-2.6.32-431.91.3.el6, kernel-abi-whitelists-2.6.32-431.91.3.el6, kernel-debug-2.6.32-431.91.3.el6 +6
    • Red Hat Enterprise Linux Server Optional AUS (v. 6.5) kernel-2.6.32-431.91.3.el6, python-perf-2.6.32-431.91.3.el6
  • RHSA-2018:2394 Released 2018-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 6.4) kernel-2.6.32-358.91.4.el6, kernel-debug-2.6.32-358.91.4.el6, kernel-debug-devel-2.6.32-358.91.4.el6 +5
    • Red Hat Enterprise Linux Server Optional AUS (v. 6.4) kernel-2.6.32-358.91.4.el6, python-perf-2.6.32-358.91.4.el6
Show 2 more Red Hat advisories
  • RHSA-2018:2392 Released 2018-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 6.6) kernel-2.6.32-504.72.4.el6, kernel-abi-whitelists-2.6.32-504.72.4.el6, kernel-debug-2.6.32-504.72.4.el6 +6
    • Red Hat Enterprise Linux Server Optional AUS (v. 6.6) python-perf-2.6.32-504.72.4.el6
    • Red Hat Enterprise Linux Server Optional TUS (v. 6.6) python-perf-2.6.32-504.72.4.el6
    • Red Hat Enterprise Linux Server TUS (v. 6.6) kernel-2.6.32-504.72.4.el6, kernel-abi-whitelists-2.6.32-504.72.4.el6, kernel-debug-2.6.32-504.72.4.el6 +6
  • RHSA-2018:2390 Released 2018-08-14 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-754.3.5.el6, kernel-abi-whitelists-2.6.32-754.3.5.el6, kernel-debug-2.6.32-754.3.5.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-754.3.5.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-754.3.5.el6, kernel-abi-whitelists-2.6.32-754.3.5.el6, kernel-debug-2.6.32-754.3.5.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-754.3.5.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-754.3.5.el6, kernel-abi-whitelists-2.6.32-754.3.5.el6, kernel-bootwrapper-2.6.32-754.3.5.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-754.3.5.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-754.3.5.el6, kernel-abi-whitelists-2.6.32-754.3.5.el6, kernel-debug-2.6.32-754.3.5.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-754.3.5.el6

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux HPC Node EUS (v. 6.7)Fixed RHSA-2018:2391
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7)Fixed RHSA-2018:2391
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux Server AUS (v. 6.4)Fixed RHSA-2018:2394
Red Hat Enterprise Linux Server AUS (v. 6.5)Fixed RHSA-2018:2393
Red Hat Enterprise Linux Server AUS (v. 6.6)Fixed RHSA-2018:2392
Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2018:2391
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux Server Optional AUS (v. 6.4)Fixed RHSA-2018:2394
Red Hat Enterprise Linux Server Optional AUS (v. 6.5)Fixed RHSA-2018:2393
Red Hat Enterprise Linux Server Optional AUS (v. 6.6)Fixed RHSA-2018:2392
Red Hat Enterprise Linux Server Optional EUS (v. 6.7)Fixed RHSA-2018:2391
Red Hat Enterprise Linux Server Optional TUS (v. 6.6)Fixed RHSA-2018:2392
Red Hat Enterprise Linux Server TUS (v. 6.6)Fixed RHSA-2018:2392
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:2390
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:2390
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-10901
  2. 2026-10-03 Alias added: GHSA-8j5h-gvcc-pfhw

References

Patch 3

Advisory 7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences