CVE-2009-1957
strongswan - denial of service
EPSS 1.7%
Description
charon/sa/ike_sa.c in the charon daemon in strongSWAN before 4.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an invalid IKE_SA_INIT request that triggers "an incomplete state," followed by a CREATE_CHILD_SA request.
How to fix CVE-2009-1957
To remediate CVE-2009-1957, upgrade the affected package to a fixed version below.
- Debian/strongswan—upgrade to 4.2.14-1.1 or later
- Debian/strongswan—upgrade to 2.8.0+dfsg-1+etch2 or later
Is CVE-2009-1957 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.2.14-1.1
- from 0, < 2.8.0+dfsg-1+etch2