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CVE-2009-1958

UnknownEPSS 2.92%

Last modified

CVE-2009-1958 is a vulnerability of currently unknown severity. charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.. EPSS estimates a 2.92% chance of exploitation in the next 30 days.

Description

charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.

Metrics

EPSS Probability
2.92%

85.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
StrongswanStrongswan<= 4.2.9
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 80 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-1958?
charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.
How severe is CVE-2009-1958?
Severity scoring for CVE-2009-1958 is pending analysis. The EPSS model estimates a 2.92% probability of exploitation in the next 30 days.
How do I fix CVE-2009-1958?
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-2009-1958?

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

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Source: NVD / NIST