CVE & CISA-KEV Catalog

CVE-2016-8645

MEDIUM

5.5

CVSS v3

Description

The TCP stack in the Linux kernel before 4.8.10 mishandles skb truncation, which allows local users to cause a denial of service (system crash) via a crafted application that makes sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c.

CWE-284Improper Access Control

How to fix

Remediation Available

linuxDebian

Fixed in:4.8.11-1CVE-2016-8645

Fixed in:4.8.11-1CVE-2016-8645

Fixed in:4.8.11-1CVE-2016-8645

Fixed in:4.8.11-1CVE-2016-8645

linuxUbuntu

Fixed in:3.13.0-119.166USN-3290-1

Fixed in:4.4.0-57.78USN-3161-1

linux-image-3.13.0-119-genericUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-generic-lpaeUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-lowlatencyUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-powerpc-e500Ubuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-powerpc-e500mcUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-powerpc-smpUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-3.13.0-119-powerpc64-smpUbuntu

Fixed in:3.13.0-119.166USN-3290-1

linux-image-4.4.0-1038-raspi2Ubuntu

Fixed in:4.4.0-1038.45USN-3161-3

linux-image-4.4.0-1042-snapdragonUbuntu

Fixed in:4.4.0-1042.46USN-3161-4

linux-image-4.4.0-57-genericUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-generic-lpaeUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-lowlatencyUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-powerpc-e500mcUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-powerpc-smpUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-powerpc64-embUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-image-4.4.0-57-powerpc64-smpUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

Fixed in:4.4.0-57.78USN-3161-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-57.78~14.04.1USN-3161-2

linux-raspi2Ubuntu

Fixed in:4.4.0-1038.45USN-3161-3

linux-snapdragonUbuntu

Fixed in:4.4.0-1042.46USN-3161-4

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Patch2

Third-Party Advisory2

Issue Tracking1

bugzilla.redhat.com

Release Notes1

kernel.org

Other references5

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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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.