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TI-2019-13499 Aliases CVE-2019-18660GHSA-vrqr-mqc4-gmrf

The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the…

Priority LOW 23CWE-200Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.

Why it matters now

EPSS 0.00736 54th percentileScored 2026-11-07
Fix Partial Red Hat: 7 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 5.4.1VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.4.1 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 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:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat

Remediation

Red Hat 7 advisories

  • RHSA-2020:2933 Released 2020-07-15 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-754.31.1.el6, kernel-abi-whitelists-2.6.32-754.31.1.el6, kernel-debug-2.6.32-754.31.1.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-754.31.1.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-754.31.1.el6, kernel-abi-whitelists-2.6.32-754.31.1.el6, kernel-debug-2.6.32-754.31.1.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-754.31.1.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-754.31.1.el6, kernel-abi-whitelists-2.6.32-754.31.1.el6, kernel-bootwrapper-2.6.32-754.31.1.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-754.31.1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-754.31.1.el6, kernel-abi-whitelists-2.6.32-754.31.1.el6, kernel-debug-2.6.32-754.31.1.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-754.31.1.el6
  • RHSA-2020:2851 Released 2020-07-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) bpftool-3.10.0-957.56.1.el7, kernel-3.10.0-957.56.1.el7, kernel-abi-whitelists-3.10.0-957.56.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.56.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.6) bpftool-3.10.0-957.56.1.el7, kernel-3.10.0-957.56.1.el7, kernel-abi-whitelists-3.10.0-957.56.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debug-devel-3.10.0-957.56.1.el7, kernel-tools-libs-devel-3.10.0-957.56.1.el7
    • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-devel-3.10.0-957.56.1.el7, perf-3.10.0-957.56.1.el7, python-perf-3.10.0-957.56.1.el7
  • RHSA-2020:2429 Released 2020-06-09 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.0) bpftool-4.18.0-80.23.2.el8_0, kernel-4.18.0-80.23.2.el8_0, kernel-abi-whitelists-4.18.0-80.23.2.el8_0 +14
Show 4 more Red Hat advisories
  • RHSA-2020:1984 Released 2020-04-30 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) bpftool-3.10.0-1062.21.1.el7, kernel-3.10.0-1062.21.1.el7, kernel-abi-whitelists-3.10.0-1062.21.1.el7 +9
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.21.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.7) bpftool-3.10.0-1062.21.1.el7, kernel-3.10.0-1062.21.1.el7, kernel-abi-whitelists-3.10.0-1062.21.1.el7 +12
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debug-devel-3.10.0-1062.21.1.el7, kernel-tools-libs-devel-3.10.0-1062.21.1.el7
  • RHSA-2020:1372 Released 2020-04-07 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-147.8.1.el8_1
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-147.8.1.el8_1, kernel-4.18.0-147.8.1.el8_1, kernel-abi-whitelists-4.18.0-147.8.1.el8_1 +19
  • RHSA-2020:1016 Released 2020-03-31 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1127.el7, kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
  • RHSA-2020:0174 Released 2020-01-21 · Red Hat rating Important
    kernel-alt security and bug fix update
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.17.1.el7a, kernel-abi-whitelists-4.14.0-115.17.1.el7a, kernel-alt-4.14.0-115.17.1.el7a +8
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.17.1.el7a, kernel-tools-libs-devel-4.14.0-115.17.1.el7a

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:1372
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:1372
Red Hat Enterprise Linux BaseOS E4S (v. 8.0)Fixed RHSA-2020:2429
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)Fixed RHSA-2020:1984
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7)Fixed RHSA-2020:1984
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:1984
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux Server Optional EUS (v. 7.7)Fixed RHSA-2020:1984
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2020:2933
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2020:0174
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2020:0174
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUSFixed RHSA-2020:2851
Not affected: 5 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • Red Hat Enterprise Linux Server EUS (v. 7.6)
  • Red Hat Enterprise MRG 2
  • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-18660
  2. 2026-10-03 Alias added: GHSA-vrqr-mqc4-gmrf

References

Patch 3

Advisory 15

Sources

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