ID CVE-2018-1087
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:4.17:rc1:*:*:*:*:*:*
    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:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
    cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
    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:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_aus: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_aus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
    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_eus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVSS
Base: 4.6 (as of 09-10-2019 - 23:38)
Impact:
Exploitability:
CWE NVD-CWE-noinfo
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
assigner via4 cve@mitre.org
cvss-vector via4 AV:L/AC:L/Au:N/C:P/I:P/A:P
redhat via4
advisories
  • rhsa
    id RHSA-2018:1318
  • rhsa
    id RHSA-2018:1345
  • rhsa
    id RHSA-2018:1347
  • rhsa
    id RHSA-2018:1348
  • rhsa
    id RHSA-2018:1355
  • rhsa
    id RHSA-2018:1524
rpms
  • kernel-0:3.10.0-862.2.3.el7
  • kernel-abi-whitelists-0:3.10.0-862.2.3.el7
  • kernel-bootwrapper-0:3.10.0-862.2.3.el7
  • kernel-debug-0:3.10.0-862.2.3.el7
  • kernel-debug-devel-0:3.10.0-862.2.3.el7
  • kernel-devel-0:3.10.0-862.2.3.el7
  • kernel-doc-0:3.10.0-862.2.3.el7
  • kernel-headers-0:3.10.0-862.2.3.el7
  • kernel-kdump-0:3.10.0-862.2.3.el7
  • kernel-kdump-devel-0:3.10.0-862.2.3.el7
  • kernel-tools-0:3.10.0-862.2.3.el7
  • kernel-tools-libs-0:3.10.0-862.2.3.el7
  • kernel-tools-libs-devel-0:3.10.0-862.2.3.el7
  • perf-0:3.10.0-862.2.3.el7
  • python-perf-0:3.10.0-862.2.3.el7
  • kernel-rt-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-debug-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-debug-devel-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-debug-kvm-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-devel-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-doc-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-kvm-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-trace-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-trace-devel-0:3.10.0-862.2.3.rt56.806.el7
  • kernel-rt-trace-kvm-0:3.10.0-862.2.3.rt56.806.el7
refmap via4
bid 104127
confirm https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087
debian DSA-4196
misc
sectrack 1040862
ubuntu
  • USN-3641-1
  • USN-3641-2
vulnerable_product via4
  • cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*
  • 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:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*: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:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
  • 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_eus:7.5:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Last major update 09-10-2019 - 23:38
Published 15-05-2018 - 16:29
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