Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Strongswan | Strongswan | <= 4.3.0 |
Related Weaknesses (CWE)
References
- http://download.strongswan.org/CHANGES4.txtPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.xPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.xVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://secunia.com/advisories/35296
- http://secunia.com/advisories/35685
- http://secunia.com/advisories/36922
- http://www.debian.org/security/2009/dsa-1899
- http://www.securityfocus.com/bid/35178
- https://lists.strongswan.org/pipermail/users/2009-May/003457.html
- http://download.strongswan.org/CHANGES4.txtPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.xPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.xVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://secunia.com/advisories/35296
FAQ
What is CVE-2009-1957?
CVE-2009-1957 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 tri...
How severe is CVE-2009-1957?
CVE-2009-1957 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-2009-1957?
Check the references section above for vendor advisories and patch information. Affected products include: Strongswan Strongswan.