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TI-2017-05160 Aliases CVE-2017-7518GHSA-hwr9-p63p-wq87

Improper handling of exceptional conditions in [UNKNOWN] Kernel:

Priority LOW 35CWE-250Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.

Why it matters now

EPSS 0.00672 52nd percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]Kernel:4.12—No fix listedCNA
  • Kernel: Vendor[UNKNOWN] Affected 4.12 Fixed in — No fix listed CNA

CPE configurations NVD · 12

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:7.4:*:*:*:*:*:*:*7.4VulnerableRed 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_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
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:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • 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:7.4:*:*:*:*:*:*:* Versions 7.4 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_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • 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:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 4.12VulnerableLinux
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.12 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2018:0395 Released 2018-03-06 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-693.21.1.el7, kernel-abi-whitelists-3.10.0-693.21.1.el7, kernel-debug-3.10.0-693.21.1.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.21.1.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-693.21.1.el7, kernel-abi-whitelists-3.10.0-693.21.1.el7, kernel-debug-3.10.0-693.21.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.21.1.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-693.21.1.el7, kernel-abi-whitelists-3.10.0-693.21.1.el7, kernel-bootwrapper-3.10.0-693.21.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-693.21.1.el7, kernel-tools-libs-devel-3.10.0-693.21.1.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-693.21.1.el7, kernel-abi-whitelists-3.10.0-693.21.1.el7, kernel-debug-3.10.0-693.21.1.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.21.1.el7
  • RHSA-2018:0412 Released 2018-03-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-693.21.1.rt56.639.el7, kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7, kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-693.21.1.rt56.639.el7, kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7, kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7 +7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux Realtime (v. 7)Fixed RHSA-2018:0412
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:0395
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2018:0412
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-7518
  2. 2026-10-03 Alias added: GHSA-hwr9-p63p-wq87

References

Patch 3

Advisory 7

Sources

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