CVE-2009-2185

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-06-25 · updated 2026-06-16
Weakness: CWE-20

Description

The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.

Affected products

strongSwan: 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5 (+24)
Xelerance Openswan: 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5 (+20)

References

http://download.strongswan.org/CHANGES2.txt
http://download.strongswan.org/CHANGES4.txt
http://download.strongswan.org/CHANGES42.txt
http://secunia.com/advisories/35522
http://secunia.com/advisories/35698
http://secunia.com/advisories/35740
http://secunia.com/advisories/35804
http://secunia.com/advisories/36922
http://secunia.com/advisories/36950
http://secunia.com/advisories/37504
http://up2date.astaro.com/2009/07/up2date_7404_released.html
http://www.debian.org/security/2009/dsa-1898

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