Security readout for executives and security teams
CVE-2018-5388 is a denial-of-service flaw in strongSwan before 5.6.3. A malformed or unexpectedly short packet handled by the stroke socket path could trigger a buffer underflow and consume resources. The practical business impact is potential VPN service disruption, not confirmed data theft or code execution from the provided sources. Exposure is most relevant for organizations running strongSwan VPN services or packages older than 5.6.3. The provided bundle does not clearly establish whether the vulnerable socket is remotely reachable in all deployments, so validate local configuration and package provenance. Address during normal vulnerability remediation, faster for production VPN gateways supporting remote access, site-to-site connectivity, or incident response operations. The main risk is downtime, and the bundle does not prove active exploitation or confidentiality impact. Mitigation focus: Upgrade strongSwan to 5.6.3 or a vendor-fixed package.; Apply relevant Debian, Ubuntu, Gentoo, or openSUSE security updates.; Review vendor guidance before changing socket exposure or service configuration..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2018-5388 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- GLSA-201811-16CVE reference · vendor-advisory
- https://git.strongswan.org/?p=strongswan.git%3Ba=commitdiff%3Bh=0acd1ab4CVE reference
- USN-3771-1CVE reference · vendor-advisory
- DSA-4229CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Underwrite ('Buffer Underflow')
Buffer Underwrite ('Buffer Underflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.