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MEDIUM · 5.0

CVE-2009-2661

The asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which al...

Vulnerability Description

The asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which allows remote attackers to cause a denial of service (pluto IKE daemon crash) via malformed ASN.1 data. NOTE: this is due to an incomplete fix for CVE-2009-2185.

CVSS Score

5.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL

Affected Products

VendorProductVersions
StrongswanStrongswan2.8.0

Related Weaknesses (CWE)

CWE-310

References

FAQ

What is CVE-2009-2661?

CVE-2009-2661 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which al...

How severe is CVE-2009-2661?

CVE-2009-2661 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2009-2661?

Check the references section above for vendor advisories and patch information. Affected products include: Strongswan Strongswan.