| Name | CVE-2009-1957 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-1899-1 |
| Debian Bugs | 531612 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| strongswan (PTS) | bullseye (security), bullseye | 5.9.1-1+deb11u4 | fixed |
| bookworm, bookworm (security) | 5.9.8-5+deb12u1 | fixed |
| sid, trixie | 5.9.13-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[etch] - strongswan <not-affected> (Vulnerable code not present, IKEv2 was introduced in 4.3)