CVE Vulnerability

CVE-2018-12904

In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially allowing privilege escalations and denial of service attacks due to lack of checking of CPL.

4.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

4.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.4 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/torvalds/linux/commit/727ba748e110b4de50d142edca9d6a9b7e6111d8 Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.2 Release Notes Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1589 Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ba748e110b4de50d142edca9d6a9b7e6111d8 Patch Vendor Advisory
https://www.exploit-db.com/exploits/44944/ Exploit Third Party Advisory
https://usn.ubuntu.com/3752-2/ Third Party Advisory
https://usn.ubuntu.com/3752-1/ Third Party Advisory
https://usn.ubuntu.com/3752-3/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Information

Published : 2018-06-27 11:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-12904

Mitre link : CVE-2018-12904

Products Affected
No products.
CWE
NVD-CWE-noinfo