CVE-2018-5388

Strongswan vulnerability

CVSS

6.5

EPSS

4.0%

EPSS pct

89th

Exploited

No known

In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket.

Affected vendor

Strongswan

Affected product

Strongswan

CVSS vector

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

Weakness type (CWE)

CWE-124
CWE-787 — Out-of-bounds Write

Published

2018-05-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2018-5388

Confirm whether Strongswan Strongswan is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-5388.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-5388

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