CVE-2009-1957

NameCVE-2009-1957
Descriptioncharon/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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1899-1
NVD severitymedium (attack range: remote)
Debian Bugs531612

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)jessie (security), jessie5.2.1-6+deb8u6fixed
stretch (security), stretch5.5.1-4+deb9u2fixed
buster, sid5.6.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansource(unstable)4.2.14-1.1medium531612
strongswansourceetch2.8.0+dfsg-1+etch2mediumDSA-1899-1
strongswansourcelenny4.2.4-5+lenny3mediumDSA-1899-1

Notes

[etch] - strongswan <not-affected> (Vulnerable code not present, IKEv2 was introduced in 4.3)
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