VulnerabilityModified
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…
MEDIUM 5.0EPSS 2.95%
Does this matter?
Lower severity and a low EPSS score (2.95%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 2.95% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- strongswan/strongswan
- Source
- cve@mitre.org
References
- http://download.strongswan.org/CHANGES4.txtPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.x.x_invalid_ike_state.patchPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.x.x_invalid_ike_state.readmeVendor 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.x.x_invalid_ike_state.patchPatch
- http://download.strongswan.org/patches/03_invalid_ike_state_patch/strongswan-4.x.x_invalid_ike_state.readmeVendor 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.