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Fencer Vulns
medium 5.0

CVE-2009-2185 json

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 befor…

published 2009-06-24 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2181

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

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.

Patch / fix

  • strongswan Debian 14, Debian 13, Debian 12 4.2.14-1.2

debian advisories DEBIAN-CVE-2009-2185

  • openswan RHEL 5 2.6.14-1.el5_3.3

red hat advisories RHSA-2009:1138

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2185 updated cvss 5.0

Openswan ASN.1 parser vulnerability

  • Red Hat Enterprise Linux (v. 5 server) openswan 2.6.14-1.el5_3.3 Red Hat Enterprise Linux Desktop (v. 5 client) openswan 2.6.14-1.el5_3.3
    fixed: vendor fix RHSA-2009:1138

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.37% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.