CVE-2016-4470
UnknownEPSS 0.59%
Last modified
CVE-2016-4470 is a vulnerability of currently unknown severity. The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.
Description
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Oracle | Vm Server | 3.3 | — |
| Oracle | Vm Server | 3.4 | — |
| Oracle | Linux | 5.0 | — |
| Oracle | Linux | 6 | — |
| Oracle | Linux | 7 | — |
| Linux | Linux Kernel | <= 4.6.3 | — |
| Novell | Suse Linux Enterprise Real Time Extension | 12.0 | Sp1 |
| Redhat | Enterprise Linux | 6.0 | — |
| Redhat | Enterprise Linux Desktop | 7.0 | — |
| Redhat | Enterprise Linux For Real Time | 7.0 | — |
| Redhat | Enterprise Linux Hpc Node | 7.0 | — |
| Redhat | Enterprise Linux Hpc Node Eus | 7.0 | — |
| Redhat | Enterprise Linux Server | 7.0 | — |
| Redhat | Enterprise Linux Server Aus | 7.2 | — |
| Redhat | Enterprise Linux Server Eus | 7.2 | — |
| Redhat | Enterprise Linux Workstation | 7.0 | — |
| Redhat | Enterprise Mrg | 2.0 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1532.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1541.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1341716Issue Tracking, Third Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1532.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1541.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1341716Issue Tracking, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4470?
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.
How severe is CVE-2016-4470?
Severity scoring for CVE-2016-4470 is pending analysis. The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4470?
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-2016-4470?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST