Security readout for executives and security teams
CVE-2009-1957 is a remote crash issue in strongSwan's charon IKE daemon before 4.3.1. An unauthenticated network attacker could disrupt VPN service by sending malformed IKE traffic that leaves the daemon in an incomplete state and then triggers a crash. Exposure is limited to systems running the affected strongSwan charon daemon, particularly services reachable by untrusted networks for IKE negotiation. The source bundle names strongSwan before 4.3.1 and includes Debian and SUSE advisory references, but does not enumerate all affected package versions. Treat as a service-availability risk for VPN infrastructure. Prioritize internet-facing or business-critical strongSwan deployments, but avoid emergency language unless local exposure is confirmed. Mitigation focus: Upgrade strongSwan to 4.3.1 or a vendor-supported fixed package.; Apply the strongSwan invalid IKE state patch if upgrading is not immediately possible.; Review Debian and SUSE advisories for distribution-specific fixed package versions..
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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CVE-2009-1957 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
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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
- [strongSwan] 20090527 [strongSwan] ANNOUNCE: strongSwan 4.3.1 and 4.2.15 releasedCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
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