CVE-2018-18445
HIGHCVSS 7.8/10EPSS 0.53%
Last modified
CVE-2018-18445 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.14.9, < 4.14.75 |
| Linux | Linux Kernel | >= 4.15, < 4.18.13 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server | 7.6 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- https://access.redhat.com/errata/RHSA-2019:0512Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0514Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1686Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75Patch, Release Notes, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13Patch, Release Notes, Third Party Advisory
- https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681Patch, Third Party Advisory
- https://support.f5.com/csp/article/K38456756Third Party Advisory
- https://usn.ubuntu.com/3832-1/Third Party Advisory
- https://usn.ubuntu.com/3835-1/Third Party Advisory
- https://usn.ubuntu.com/3847-1/Third Party Advisory
- https://usn.ubuntu.com/3847-2/Third Party Advisory
- https://usn.ubuntu.com/3847-3/Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0512Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0514Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1686Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75Patch, Release Notes, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13Patch, Release Notes, Third Party Advisory
- https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681Patch, Third Party Advisory
- https://support.f5.com/csp/article/K38456756Third Party Advisory
- https://usn.ubuntu.com/3832-1/Third Party Advisory
- https://usn.ubuntu.com/3835-1/Third Party Advisory
- https://usn.ubuntu.com/3847-1/Third Party Advisory
- https://usn.ubuntu.com/3847-2/Third Party Advisory
- https://usn.ubuntu.com/3847-3/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-18445?
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
How severe is CVE-2018-18445?
CVE-2018-18445 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18445?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-1844IBM FileNet Content Manager 5.2.1 and 5.5.0 is vulnerable to…7.1
- CVE-2018-18440DENX U-Boot through 2018.09-rc1 has a locally exploitable bu…
- CVE-2018-18441D-Link DCS series Wi-Fi cameras expose sensitive information…
- CVE-2018-18442D-Link DCS-825L devices with firmware 1.08 do not employ a s…
- CVE-2018-18443OpenEXR 2.3.0 has a memory leak in ThreadPool in IlmBase/Ilm…
- CVE-2018-18444makeMultiView.cpp in exrmultiview in OpenEXR 2.3.0 has an ou…
- CVE-2018-18446dotPDN Paint.NET before 4.1.2 allows Deserialization of Untr…9.8
- CVE-2018-18447dotPDN Paint.NET before 4.1.2 allows Deserialization of Untr…9.8
- CVE-2018-18449EmpireCMS 7.5 allows CSRF for adding a user account via an e…
- CVE-2018-1845IBM InfoSphere Information Server 11.3, 11.5, and 11.7 is vu…7.1
- CVE-2018-18450apps\admin\controller\content\SingleController.php in PbootC…
- CVE-2018-18454CCITTFaxStream::readRow() in Stream.cc in Xpdf 4.00 allows r…
Are you affected by CVE-2018-18445?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST