{"id":"CVE-2011-0989","aliases":["EUVD-2011-1001","GHSA-35v8-x66v-gw3q"],"status":"published","title":"The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before...","description":"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.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.02692,"percentile":0.85957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2011-04-13T21:00:00Z","modified":"2026-06-16T23:28:24Z","products":[{"vendor":"mono","product":"mono"},{"vendor":"novell","product":"moonlight"}],"references":[{"url":"https://bugzilla.novell.com/show_bug.cgi?id=667077","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://www.securityfocus.com/bid/47208","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://openwall.com/lists/oss-security/2011/04/06/14","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"https://github.com/mono/mono/commit/035c8587c0d8d307e45f1b7171a0d337bb451f1e","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/44002","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.mono-project.com/Vulnerabilities","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://secunia.com/advisories/44076","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2011/0904","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66624","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0989"},{"url":"https://github.com/advisories/GHSA-35v8-x66v-gw3q"}],"sources":{"cve":[{"id":"CVE-2011-0989","description":"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.","status":"published","published":"2011-04-13T21:00:00Z","modified":"2024-08-06T22:14:26.519Z","updated_at":"2026-11-02T14:35:39.447402Z"}],"euvd":[{"id":"EUVD-2011-1001","description":"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.","status":"published","published":"2011-04-13T21:00:00Z","modified":"2024-08-06T22:14:26Z","updated_at":"2026-11-03T01:55:58.301107Z"}],"ghsa":[{"id":"GHSA-35v8-x66v-gw3q","title":"The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before...","description":"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.","status":"published","published":"2022-05-17T02:01:32Z","modified":"2023-02-03T05:06:41Z","updated_at":"2026-11-02T14:53:56.446132Z"}],"nvd":[{"id":"CVE-2011-0989","description":"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.","status":"published","published":"2011-04-13T21:55:00.737Z","modified":"2026-06-16T23:28:24.59Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:07.221228Z"}]}}