Buffer overflow in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c…
Priority LOW 34CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.
Summary
Buffer overflow in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c in the Linux kernel through 3.2 allows local users to gain privileges via a crafted ACPI table.
Why it matters now
EPSS 0.00412 35th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 3.2.95; 3.3 to before 3.16.50; 3.17 to before 3.18.63; 3.19 to before 4.1.44; 4.2 to before 4.4.79; 4.5 to before 4.9.40; 4.10 to before 4.12.4 | Vulnerable | Linux |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.2.95; 3.3 to before 3.16.50; 3.17 to before 3.18.63; 3.19 to before 4.1.44; 4.2 to before 4.4.79; 4.5 to before 4.9.40; 4.10 to before 4.12.4 Vulnerable ·Linux
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2018:0654 Released 2018-04-10 · Red Hat rating Importantkernel-alt security, bug fix, and enhancement update
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-49.el7a, kernel-abi-whitelists-4.14.0-49.el7a, kernel-alt-4.14.0-49.el7a +12
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-49.el7a, kernel-doc-4.14.0-49.el7a, kernel-tools-libs-devel-4.14.0-49.el7a
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2018:0654 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2018:0654 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11473
- 2026-10-03 Alias added: GHSA-97j5-9xxv-78pq
References
Patch 2
Sources
- CVE-2017-11473 · CVE Program
- CVE-2017-11473 · NVD
- FIRST EPSS
- GHSA-97j5-9xxv-78pq · GitHub Advisory Database · CC BY 4.0
- CVE-2017-11473 · Red Hat security data · CC BY 4.0
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