Back
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,…
High7.8EPSS 0.52%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.52% · top 56% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
References (11)
- 104905 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2018:2393 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2390 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2391 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2392 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2394 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.oracle.com/security-alerts/cpujul2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (opens in a new tab)x_refsource_MISCx_transferred
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-10901)Record last updated .