CVE Vulnerability

CVE-2018-1087

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087 Issue Tracking
https://access.redhat.com/security/vulnerabilities/pop_ss Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/05/08/5 Mailing List
https://www.debian.org/security/2018/dsa-4196 Third Party Advisory
https://usn.ubuntu.com/3641-2/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1524 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1355 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1348 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1347 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1345 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1318 Third Party Advisory
http://www.securitytracker.com/id/1040862 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/104127 Third Party Advisory VDB Entry
https://usn.ubuntu.com/3641-1/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*
Information

Published : 2018-05-15 04:29

Updated : 2019-10-09 11:38

NVD link : CVE-2018-1087

Mitre link : CVE-2018-1087

Products Affected
No products.
CWE
NVD-CWE-noinfo