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TI-2017-05500 Aliases CVE-2017-7889GHSA-p5mv-cxgx-vhg7

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the…

Priority LOW 34CWE-732Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 19 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

Why it matters now

EPSS 0.0032 25th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 19 fixed, 1 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 · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.2.91; 3.3 to before 3.10.107; 3.11 to before 3.12.74; 3.13 to before 3.16.46; 3.17 to before 3.18.50; 3.19 to before 4.1.41; 4.2 to before 4.4.63; 4.5 to before 4.9.24; 4.10 to before 4.10.12VulnerableLinux
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.2.91; 3.3 to before 3.10.107; 3.11 to before 3.12.74; 3.13 to before 3.16.46; 3.17 to before 3.18.50; 3.19 to before 4.1.41; 4.2 to before 4.4.63; 4.5 to before 4.9.24; 4.10 to before 4.10.12 Vulnerable ·Linux
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical

Remediation

Red Hat 4 advisories

  • RHSA-2018:1854 Released 2018-06-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-bootwrapper-2.6.32-754.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-754.el6
  • RHSA-2017:2669 Released 2017-09-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-devel-1:3.10.0-693.2.1.rt56.585.el6rt +7
  • RHSA-2017:1842 Released 2017-08-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-bootwrapper-3.10.0-693.el7 +10
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-693.el7, kernel-doc-3.10.0-693.el7, kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
Show 1 more Red Hat advisories
  • RHSA-2017:2077 Released 2017-08-01 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +7

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: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2017:2077
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2017:2077
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2017:2669
Not affected: 4 products
  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-7889
  2. 2026-10-03 Alias added: GHSA-p5mv-cxgx-vhg7

References

Patch 3

Advisory 8

Sources

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