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-2011-0989 negligible priority: Ubuntu including 1 source packages (mono), 11 status rows across 11 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, upstream): ignored 6, not-affected 4, needs-triage 1.
The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, does not properly restrict data types, which allows remote attackers to modify internal read-only data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file, as demonstrated by modifying a C# struct.