CVE-2018-10901
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.5%
exploitation probability
0.5%top 57% of all CVEs
observed exploitation
nono source reports it
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
[UNKNOWN] · kernel:References
https://access.redhat.com/errata/RHSA-2018:2390https://access.redhat.com/errata/RHSA-2018:2391https://access.redhat.com/errata/RHSA-2018:2392https://access.redhat.com/errata/RHSA-2018:2393https://access.redhat.com/errata/RHSA-2018:2394https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0https://www.oracle.com/security-alerts/cpujul2020.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlhttp://www.securityfocus.com/bid/104905