Read the docs
TI-2018-01006 Aliases CVE-2018-1087GHSA-j658-wqr4-q3w7

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2…

Priority LOW 36CWE-250Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 30 fixed, 2 without a fix

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-250.

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.

Why it matters now

EPSS 0.00743 54th percentileScored 2026-11-07
Fix Partial Red Hat: 8 advisoriesRed Hat: 30 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
kernelKVMkernel 4.16; kernel 4.16-rc7; kernel 4.17-rc1; kernel 4.17-rc2; kernel 4.17-rc3—No fix listedCNA
  • KVM Vendorkernel Affected kernel 4.16; kernel 4.16-rc7; kernel 4.17-rc1; kernel 4.17-rc2; kernel 4.17-rc3 Fixed in — No fix listed CNA

CPE configurations NVD · 24

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*4.16VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:*4.16 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.17:rc1:*:*:*:*:*:*4.17 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.17:rc2:*:*:*:*:*:*4.17 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:*4.17 rc3VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:* Versions 4.16 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.16:rc7:*:*:*:*:*:* Versions 4.16 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.17:rc1:*:*:*:*:*:* Versions 4.17 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.17:rc2:*:*:*:*:*:* Versions 4.17 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.17:rc3:*:*:*:*:*:* Versions 4.17 rc3 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Show 14 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 8 advisories

  • RHSA-2018:1711 Released 2018-05-23 · Red Hat rating Important
    rhev-hypervisor7 security update
    • RHEL 7-based RHEV-H ELS rhev-hypervisor7-7.3-20180521.1.el7ev
    • RHEV Hypervisor for RHEL-6 ELS rhev-hypervisor7-7.3-20180521.1.el6ev
  • RHSA-2018:1710 Released 2018-05-23 · Red Hat rating Important
    redhat-virtualization-host security update
    • RHEL 7-based RHEV-H ELS redhat-virtualization-host-3.6-20180521.0.el7_3, redhat-virtualization-host-image-update-3.6-20180521.0.el7_3
  • RHSA-2018:1524 Released 2018-05-15 · Red Hat rating Important
    redhat-virtualization-host bug fix and enhancement update
    • RHEL 7-based RHEV-H for RHEV 4 (build requirements) imgbased-1.0.16-0.1.el7ev, ovirt-node-ng-4.2.0-0.20170814.0.el7, ovirt-node-ng-nodectl-4.2.0-0.20170814.0.el7 +3
    • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host-4.2-20180508.0.el7_5, redhat-virtualization-host-image-update-4.2-20180508.0.el7_5
Show 5 more Red Hat advisories
  • RHSA-2018:1355 Released 2018-05-08 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-862.2.3.rt56.806.el7, kernel-rt-debug-3.10.0-862.2.3.rt56.806.el7, kernel-rt-debug-devel-3.10.0-862.2.3.rt56.806.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-862.2.3.rt56.806.el7, kernel-rt-debug-3.10.0-862.2.3.rt56.806.el7, kernel-rt-debug-devel-3.10.0-862.2.3.rt56.806.el7 +7
  • RHSA-2018:1348 Released 2018-05-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.3) kernel-3.10.0-514.48.3.el7, kernel-abi-whitelists-3.10.0-514.48.3.el7, kernel-debug-3.10.0-514.48.3.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) kernel-tools-libs-devel-3.10.0-514.48.3.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.3) kernel-3.10.0-514.48.3.el7, kernel-abi-whitelists-3.10.0-514.48.3.el7, kernel-bootwrapper-3.10.0-514.48.3.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.3) kernel-debug-devel-3.10.0-514.48.3.el7, kernel-tools-libs-devel-3.10.0-514.48.3.el7
  • RHSA-2018:1347 Released 2018-05-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.2) kernel-3.10.0-327.66.3.el7, kernel-abi-whitelists-3.10.0-327.66.3.el7, kernel-debug-3.10.0-327.66.3.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.2) kernel-3.10.0-327.66.3.el7, kernel-abi-whitelists-3.10.0-327.66.3.el7, kernel-debug-3.10.0-327.66.3.el7 +8
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.2) kernel-tools-libs-devel-3.10.0-327.66.3.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.2) kernel-tools-libs-devel-3.10.0-327.66.3.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.2) kernel-tools-libs-devel-3.10.0-327.66.3.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.2) kernel-3.10.0-327.66.3.el7, kernel-abi-whitelists-3.10.0-327.66.3.el7, kernel-debug-3.10.0-327.66.3.el7 +8
  • RHSA-2018:1345 Released 2018-05-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) kernel-3.10.0-693.25.4.el7, kernel-abi-whitelists-3.10.0-693.25.4.el7, kernel-debug-3.10.0-693.25.4.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.25.4.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.4) kernel-3.10.0-693.25.4.el7, kernel-abi-whitelists-3.10.0-693.25.4.el7, kernel-bootwrapper-3.10.0-693.25.4.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.4) kernel-debug-devel-3.10.0-693.25.4.el7, kernel-tools-libs-devel-3.10.0-693.25.4.el7
  • RHSA-2018:1318 Released 2018-05-08 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-862.2.3.el7, kernel-abi-whitelists-3.10.0-862.2.3.el7, kernel-debug-3.10.0-862.2.3.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.2.3.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-862.2.3.el7, kernel-abi-whitelists-3.10.0-862.2.3.el7, kernel-debug-3.10.0-862.2.3.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.2.3.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-862.2.3.el7, kernel-abi-whitelists-3.10.0-862.2.3.el7, kernel-bootwrapper-3.10.0-862.2.3.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-862.2.3.el7, kernel-tools-libs-devel-3.10.0-862.2.3.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-862.2.3.el7, kernel-abi-whitelists-3.10.0-862.2.3.el7, kernel-debug-3.10.0-862.2.3.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.2.3.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-3.10.0-862.2.3.el7, kernel-abi-whitelists-3.10.0-862.2.3.el7, kernel-bootwrapper-3.10.0-862.2.3.el7 +11
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-3.10.0-862.2.3.el7, kernel-doc-3.10.0-862.2.3.el7, kernel-tools-libs-devel-3.10.0-862.2.3.el7

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Virtualization 3AffectedNo fix yet
Red Hat Virtualization 4AffectedNo fix yet
RHEL 7-based RHEV-H ELSFixed RHSA-2018:1710, RHSA-2018:1711
RHEL 7-based RHEV-H for RHEV 4 (build requirements)Fixed RHSA-2018:1524
RHEV Hypervisor for RHEL-6 ELSFixed RHSA-2018:1711
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux ComputeNode EUS (v. 7.3)Fixed RHSA-2018:1348
Red Hat Enterprise Linux ComputeNode EUS (v. 7.4)Fixed RHSA-2018:1345
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3)Fixed RHSA-2018:1348
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4)Fixed RHSA-2018:1345
Red Hat Enterprise Linux Realtime (v. 7)Fixed RHSA-2018:1355
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux Server AUS (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Server E4S (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2018:1348
Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2018:1345
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux Server Optional AUS (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Server Optional E4S (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Server Optional EUS (v. 7.3)Fixed RHSA-2018:1348
Red Hat Enterprise Linux Server Optional EUS (v. 7.4)Fixed RHSA-2018:1345
Red Hat Enterprise Linux Server Optional TUS (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Server TUS (v. 7.2)Fixed RHSA-2018:1347
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:1318
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2018:1355
Red Hat Virtualization 4 Hypervisor for RHEL 7Fixed RHSA-2018:1524
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1087
  2. 2026-10-03 Alias added: GHSA-j658-wqr4-q3w7

References

Advisory 10

Other 2

  • TI-2014-07400 Blkid in util-linux before 2.26rc-1 allows local users to execute arbitrary code. CVSS 3.1HIGH 7.8
  • TI-2020-14100 An issue was discovered in hwclock.13-v2.27 allows attackers to gain escalated privlidges… CVSS 3.1MEDIUM 6.7
  • TI-2021-02893 A logic error was found in the libmount library of util-linux in the function that allows… CVSS 3.1MEDIUM 5.5
  • TI-2015-04386 The mkostemp function in login-utils in util-linux when used incorrectly allows remote… CVSS 3.1CRITICAL 9.8
  • TI-2026-21863 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup CVSS 3.1MEDIUM 4.7
  • TI-2024-18667 wall in util-linux through 2.40, often installed with setgid tty permissions, allows… CVSS 3.1LOW 3.3
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences