CVE & CISA-KEV Catalog

CVE-2016-4951

HIGH
7.8
CVSS v3
NVD

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.

How to fix

Remediation Available
linuxDebian
Fixed in:4.5.5-1CVE-2016-4951
Fixed in:4.5.5-1CVE-2016-4951
Fixed in:4.5.5-1CVE-2016-4951
Fixed in:4.5.5-1CVE-2016-4951
linuxUbuntu
Fixed in:4.4.0-28.47USN-3016-1
linux-image-3.19.0-64-genericUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-generic-lpaeUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-lowlatencyUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-powerpc-e500mcUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-powerpc-smpUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-powerpc64-embUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-3.19.0-64-powerpc64-smpUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-image-4.2.0-41-genericUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-generic-lpaeUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-lowlatencyUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-powerpc-e500mcUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-powerpc-smpUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-powerpc64-embUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.2.0-41-powerpc64-smpUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-image-4.4.0-1016-raspi2Ubuntu
Fixed in:4.4.0-1016.22USN-3016-2
linux-image-4.4.0-1019-snapdragonUbuntu
Fixed in:4.4.0-1019.22USN-3016-3
linux-image-4.4.0-28-genericUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-generic-lpaeUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-lowlatencyUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-powerpc-e500mcUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-powerpc-smpUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-powerpc64-embUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-image-4.4.0-28-powerpc64-smpUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
Fixed in:4.4.0-28.47USN-3016-1
linux-lts-vividUbuntu
Fixed in:3.19.0-64.72~14.04.1USN-3020-1
linux-lts-wilyUbuntu
Fixed in:4.2.0-41.48~14.04.1USN-3017-3
linux-lts-xenialUbuntu
Fixed in:4.4.0-28.47~14.04.1USN-3016-4
linux-raspi2Ubuntu
Fixed in:4.4.0-1016.22USN-3016-2
linux-snapdragonUbuntu
Fixed in:4.4.0-1019.22USN-3016-3

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.52%probability of exploitation in 30 days
40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Vendor Advisory2
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CVE-2016-4951 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.