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strongSwan IKE_SA_INIT and IKE_AUTH DoS Vulnerabilities
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
This host has installed strongSwan and is prone to Denial of Service Vulnerabilities.
Insight
Insight
The flaws are due to, - An error in charon/sa/ike_sa.c charon daemon which results in NULL pointer dereference and crash via an invalid 'IKE_SA_INIT' request that triggers 'an incomplete state, ' followed by a 'CREATE_CHILD_SA' request. - An error in incharon/sa/tasks/child_create.c charon daemon, it switches the NULL checks for TSi and TSr payloads, via an 'IKE_AUTH' request without a 'TSi' or 'TSr' traffic selector.
Affected Software
Affected Software
strongSwan Version prior to 4.2.15 and 4.3.1
Solution
Solution
Upgrade to version 4.3.1, 4.2.15 or later.