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CVE-2009-1957

UnknownEPSS 2.95%

Last modified

CVE-2009-1957 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.95% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.95%

85.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
StrongswanStrongswan<= 4.3.0
StrongswanStrongswan2.0.0
StrongswanStrongswan2.0.1
StrongswanStrongswan2.0.2
StrongswanStrongswan2.1.0
StrongswanStrongswan2.1.1
StrongswanStrongswan2.1.2
StrongswanStrongswan2.1.3
StrongswanStrongswan2.1.4
StrongswanStrongswan2.1.5
StrongswanStrongswan2.2.0
StrongswanStrongswan2.2.1
StrongswanStrongswan2.2.2
StrongswanStrongswan2.3.0
StrongswanStrongswan2.3.1
StrongswanStrongswan2.3.2
StrongswanStrongswan2.4.0
StrongswanStrongswan2.4.0a
StrongswanStrongswan2.4.1
StrongswanStrongswan2.4.2
StrongswanStrongswan2.4.3
StrongswanStrongswan2.4.4
StrongswanStrongswan2.5.0
StrongswanStrongswan2.5.1
StrongswanStrongswan2.5.2
StrongswanStrongswan2.5.3
StrongswanStrongswan2.5.4
StrongswanStrongswan2.5.5
StrongswanStrongswan2.5.6
StrongswanStrongswan2.5.7
StrongswanStrongswan2.6.0
StrongswanStrongswan2.6.1
StrongswanStrongswan2.6.2
StrongswanStrongswan2.6.3
StrongswanStrongswan2.6.4
StrongswanStrongswan2.6.16
StrongswanStrongswan2.6.20
StrongswanStrongswan2.7.0
StrongswanStrongswan2.8.0
StrongswanStrongswan2.8.1
StrongswanStrongswan2.8.2
StrongswanStrongswan2.8.3
StrongswanStrongswan2.8.4
StrongswanStrongswan2.8.5
StrongswanStrongswan2.8.6
StrongswanStrongswan2.8.7
StrongswanStrongswan2.8.8
StrongswanStrongswan4.0.0
StrongswanStrongswan4.0.1
StrongswanStrongswan4.0.2

Showing 50 of 70 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-1957?
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 severe is CVE-2009-1957?
Severity scoring for CVE-2009-1957 is pending analysis. The EPSS model estimates a 2.95% probability of exploitation in the next 30 days.
How do I fix CVE-2009-1957?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1957?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST