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CVE-2016-8645

5.5 · MEDIUM

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 ca…

Published Nov 28, 2016CWE-284EPSS 0.46%

Overview

CVE-2016-8645 is a medium-severity vulnerability. It was published on November 28, 2016 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e780070e30e4c35bd395acfe9191e6268bdd3Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.10Refwww.openwall.com/lists/oss-security/2016/11/11/3Refwww.openwall.com/lists/oss-security/2016/11/30/3Refwww.securityfocus.com/bid/94264Refwww.securitytracker.com/id/1037285Refaccess.redhat.com/errata/RHSA-2017:1842Refaccess.redhat.com/errata/RHSA-2017:2077Refaccess.redhat.com/errata/RHSA-2017:2669Refbugzilla.redhat.com/show_bug.cgi?id=1393904

How CyberStrike helps

Frequently asked questions

What is CVE-2016-8645?

CVE-2016-8645 is a medium-severity vulnerability. It was published on November 28, 2016 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2016-8645?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-8645?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-8645?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-8645 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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