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CVE-2016-4951

HIGHCVSS 7.8/10EPSS 0.52%

Last modified

CVE-2016-4951 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.52%

39.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.19, < 4.1.28
LinuxLinux Kernel>= 4.2, < 4.4.14
LinuxLinux Kernel>= 4.5, < 4.6.3
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.10
CanonicalUbuntu Linux16.04
OracleLinux6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-4951?
The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.
How severe is CVE-2016-4951?
CVE-2016-4951 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4951?
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.

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Source: NVD / NIST