A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-07-30T13:00:00

Updated: 2024-08-05T16:04:11.892Z

Reserved: 2017-04-05T00:00:00

Link: CVE-2017-7518

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-07-30T15:29:00.560

Modified: 2023-11-07T02:50:11.623

Link: CVE-2017-7518

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-06-22T00:00:00Z

Links: CVE-2017-7518 - Bugzilla