CVE-2018-10901 — Improper Initialization in Kernel
Severity
7.8HIGHNVD
EPSS
0.2%
top 63.07%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJul 26
Latest updateMay 13
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages4 packages
Also affects: Enterprise Linux 6.4, 6.5, 6.6