{"id":"CVE-2011-0992","aliases":["EUVD-2011-1004","GHSA-5v2g-vp3m-c3jg","UBUNTU-CVE-2011-0992","USN-2547-1"],"status":"published","title":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is...","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02692,"percentile":0.85988,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2011-04-13T00:00:00Z","modified":"2026-06-16T23:28:25Z","affected":[{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.8+dfsg-4ubuntu1.1"}]}],"versions":["2.10.8.1-5ubuntu2","3.2.3+dfsg-5","3.2.3+dfsg-7ubuntu1","3.2.8+dfsg-4ubuntu1"],"bundled":5}],"products":[{"vendor":"mono","product":"mono"},{"vendor":"novell","product":"moonlight"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66627","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://bugzilla.novell.com/show_bug.cgi?id=678515","tags":["x_refsource_CONFIRM","x_transferred"]},{"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":"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","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=694933","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://github.com/mono/mono/commit/722f9890f09aadfc37ae479e7d946d5fc5ef7b91","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"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://nvd.nist.gov/vuln/detail/CVE-2011-0992"},{"url":"https://github.com/advisories/GHSA-5v2g-vp3m-c3jg"},{"url":"https://ubuntu.com/security/CVE-2011-0992","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2547-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-0992","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2012-3543","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2318","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2319","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2320","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2011-0992","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","status":"published","published":"2011-04-13T21:00:00Z","modified":"2024-08-06T22:14:26.539Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1004","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","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-5v2g-vp3m-c3jg","title":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is...","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","status":"published","published":"2022-05-17T02:01:31Z","modified":"2023-02-03T05:06:41Z","updated_at":"2026-11-02T14:53:56.446132Z"}],"nvd":[{"id":"CVE-2011-0992","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","status":"published","published":"2011-04-13T21:55:00.89Z","modified":"2026-06-16T23:28:25.323Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:07.221228Z"}],"osv":[{"id":"UBUNTU-CVE-2011-0992","description":"Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.","status":"withdrawn","published":"2011-04-13T00:00:00Z","modified":"2026-02-04T02:34:11.273212Z","updated_at":"2026-11-02T15:54:06.395274Z"},{"id":"USN-2547-1","title":"mono vulnerabilities","description":"It was discovered that the Mono TLS implementation was vulnerable to the\nSKIP-TLS vulnerability. A remote attacker could possibly use this issue\nto perform client impersonation attacks. (CVE-2015-2318)\n\nIt was discovered that the Mono TLS implementation was vulnerable to the\nFREAK vulnerability. A remote attacker or a machine-in-the-middle could\npossibly use this issue to force the use of insecure ciphersuites.\n(CVE-2015-2319)\n\nIt was discovered that the Mono TLS implementation still supported a\nfallback to SSLv2. This update removes the functionality as use of SSLv2 is\nknown to be insecure. (CVE-2015-2320)\n\nIt was discovered that Mono incorrectly handled memory in certain\ncircumstances. A remote attacker could possibly use this issue to cause\nMono to crash, resulting in a denial of service, or to obtain sensitive\ninformation. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-0992)\n\nIt was discovered that Mono incorrectly handled hash collisions. A remote\nattacker could possibly use this issue to cause Mono to crash, resulting in\na denial of service. This issue only applied to Ubuntu 12.04 LTS.\n(CVE-2012-3543)\n","status":"published","published":"2015-03-24T12:44:38Z","modified":"2026-04-22T09:10:01.532088Z","updated_at":"2026-11-02T16:58:09.227524Z"}]}}