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-2007-2453 medium priority: Ubuntu including 3 source packages (linux-source-2.6.15, linux-source-2.6.17, linux-source-2.6.20), 12 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 6, needs-triage 3, released 3.
The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.