CVE-2017-17741
kernel: kvm: stack-based out-of-bounds read via vmcall instruction
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · December 11, 2017
Updated · June 28, 2026
Description
Linux kernel compiled with the KVM virtualization (CONFIG_KVM) support is vulnerable to an out-of-bounds read access issue. It could occur when emulating vmcall instructions invoked by a guest. A guest user/process could use this flaw to disclose kernel memory bytes.
Statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.
This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and 7.
This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 4.1CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS 2.0 · 2.3AV:A/AC:M/Au:S/C:P/I:N/A:N
CWE-125 · Out-of-bounds Read