View at Official debian advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2013-4564 unimportant priority: Debian including 1 source packages (libreswan), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.
Libreswan 3.6 allows remote attackers to cause a denial of service (crash) via a small length value and (1) no version or (2) an invalid major number in an IKE packet.