CVE-2018-17977

Name: CVE-2018-17977
Creator: NVD / NIST
Published: 2018-10-08T17:29:00.653+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.38%

Last modified Jun 17, 2026

CVE-2018-17977 is a vulnerability of currently unknown severity. The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.

Metrics

EPSS Probability

0.38%

29.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	4.14.67

References

http://www.securityfocus.com/bid/105539Third Party Advisory, VDB Entry
https://www.openwall.com/lists/oss-security/2018/10/05/5Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/105539Third Party Advisory, VDB Entry
https://www.openwall.com/lists/oss-security/2018/10/05/5Mailing List, Third Party Advisory

Timeline

Published: Oct 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17977?

How severe is CVE-2018-17977?

Severity scoring for CVE-2018-17977 is pending analysis. The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17977?

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.

Are you affected by CVE-2018-17977?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST