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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

EPSS Probability
0.59%

43.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
OracleVm Server3.3—
OracleVm Server3.4—
OracleLinux5.0—
OracleLinux6—
OracleLinux7—
LinuxLinux Kernel<= 4.6.3—
NovellSuse Linux Enterprise Real Time Extension12.0Sp1
RedhatEnterprise Linux6.0—
RedhatEnterprise Linux Desktop7.0—
RedhatEnterprise Linux For Real Time7.0—
RedhatEnterprise Linux Hpc Node7.0—
RedhatEnterprise Linux Hpc Node Eus7.0—
RedhatEnterprise Linux Server7.0—
RedhatEnterprise Linux Server Aus7.2—
RedhatEnterprise Linux Server Eus7.2—
RedhatEnterprise Linux Workstation7.0—
RedhatEnterprise Mrg2.0—

References

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.

Are you affected by CVE-2016-4470?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST