CVE-2018-17977

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.

Category

4.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory securityfocus.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105539 vdb entry third party advisory
https://www.openwall.com/lists/oss-security/2018/10/05/5 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2018-17977?
CVE-2018-17977 has been scored as a medium severity vulnerability.
How to fix CVE-2018-17977?
To fix CVE-2018-17977, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-17977 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-17977 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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