View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2007-4565 medium priority: Ubuntu including 1 source packages (fetchmail), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 4.
sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) by refusing certain warning messages that are sent over SMTP.