CVE-2016-2143
HIGHCVSS 7.8/10EPSS 0.56%
Last modified
CVE-2016-2143 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.
Description
The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 2.6.25, < 3.2.79 | — |
| Linux | Linux Kernel | >= 3.3, < 3.12.58 | — |
| Linux | Linux Kernel | >= 3.13, < 3.16.35 | — |
| Linux | Linux Kernel | >= 3.17, < 4.1.21 | — |
| Linux | Linux Kernel | >= 4.2, < 4.4.6 | — |
| Debian | Debian Linux | 6.0 | — |
| Debian | Debian Linux | 7.0 | — |
| Debian | Debian Linux | 8.0 | — |
| Redhat | Enterprise Linux | 7.0 | — |
| Oracle | Linux | 7 | 0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2766.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3607Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2016-2143Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2766.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3607Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2016-2143Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-2143?
The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.
How severe is CVE-2016-2143?
CVE-2016-2143 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2143?
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.
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Are you affected by CVE-2016-2143?
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Scan your code nowSource: NVD / NIST