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CVE-2017-5986

5.5 · MEDIUM

Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a denial of service (assertion failure and panic) via a multit…

Published Feb 18, 2017CWE-362EPSS 1.16%

Overview

CVE-2017-5986 is a medium-severity vulnerability. It was published on February 18, 2017 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. No authentication or special privileges are required for exploitation.

Technical description

Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state.

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=2dcab598484185dea7ec22219c76dcdd59e3cb90Refwww.debian.org/security/2017/dsa-3804Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11Refwww.openwall.com/lists/oss-security/2017/02/14/6Refwww.securityfocus.com/bid/96222Refaccess.redhat.com/errata/RHSA-2017:1308Refbugzilla.redhat.com/show_bug.cgi?id=1420276GitHubgithub.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2dcab598484185dea7ec22219c76dcdd59e3cb90Refwww.debian.org/security/2017/dsa-3804

How CyberStrike helps

Frequently asked questions

What is CVE-2017-5986?

CVE-2017-5986 is a medium-severity vulnerability. It was published on February 18, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2017-5986?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-5986?

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-2017-5986?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-5986 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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