Vulnerability in Strongswan
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.029 (86.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Strongswan — versions 2.0.0, 2.0.1, 2.0.2
Weakness classification (CWE)
References
- secunia.com/advisories/35296 (third-party-advisory)
- download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.x.x_inv… (Patch)
- secunia.com/advisories/36922 (third-party-advisory)
- lists.strongswan.org/pipermail/users/2009-May/003457.html (mailing-list)
- www.debian.org/security/2009/dsa-1899 (vendor-advisory)
- www.securityfocus.com/bid/35178 (vdb-entry)
- secunia.com/advisories/35685 (third-party-advisory)
- lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html (vendor-advisory)
- download.strongswan.org/CHANGES4.txt (Patch)
- download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.x.x_inv… (Vendor Advisory)