{"id":"CVE-2015-2319","aliases":["DEBIAN-CVE-2015-2319","DLA-176-1","DSA-3202-1","EUVD-2015-2412","GHSA-rpmm-5q5g-56vf","MGASA-2015-0156","SUSE-SU-2015:0841-1","UBUNTU-CVE-2015-2319","USN-2547-1","openSUSE-SU-2024:10476-1"],"status":"published","title":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher...","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03152,"percentile":0.88041,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2014-04-10T23:19:27Z","modified":"2026-09-09T07:00:39Z","fixes":[{"ecosystem":"Debian:12","package":"mono","fixed_in":["3.2.8+dfsg-10"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mono","fixed_in":["3.2.8+dfsg-10"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mono","fixed_in":["3.2.8+dfsg-10"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"mono","fixed_in":["3.2.8+dfsg-4ubuntu1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.8+dfsg-10"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.8+dfsg-10"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.8+dfsg-10"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.7-5.1+deb6u1"}]}],"versions":["2.6.7-5","2.6.7-5+s390x","2.6.7-5.1"],"bundled":3},{"source":"osv","ecosystem":"Debian:7","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.8.1-8+deb7u1"}]}],"versions":["2.10.8.1-8"],"bundled":3},{"source":"osv","ecosystem":"Mageia:4","package":"mono","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.3-5.2.mga4"}]}],"bundled":3},{"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"]},{"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-project","product":"mono"}],"references":[{"url":"http://www.ubuntu.com/usn/USN-2547-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/73250","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1202869","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","advisory","report"]},{"url":"https://mitls.org/pages/attacks/SMACK#freak","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2015/03/17/9","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://www.debian.org/security/2015/dsa-3202","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2319"},{"url":"https://github.com/advisories/GHSA-rpmm-5q5g-56vf"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-2319","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0156.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=15445","tags":["report"]},{"url":"http://openwall.com/lists/oss-security/2015/03/17/9","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20150841-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/606002","tags":["report"]},{"url":"https://bugzilla.suse.com/810747","tags":["report"]},{"url":"https://bugzilla.suse.com/871362","tags":["report"]},{"url":"https://bugzilla.suse.com/921312","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2318","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2319","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2320","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2015-2319","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2547-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-2319","tags":["report"]},{"url":"https://ubuntu.com/security/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-2015-2320","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4225","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-2319","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2018-01-08T19:00:00Z","modified":"2024-08-06T05:10:15.99Z","updated_at":"2026-11-02T14:35:41.621934Z"}],"euvd":[{"id":"EUVD-2015-2412","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2018-01-08T19:00:00Z","modified":"2024-08-06T05:10:15Z","updated_at":"2026-11-03T02:22:12.40366Z"}],"ghsa":[{"id":"GHSA-rpmm-5q5g-56vf","title":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher...","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2022-05-14T03:47:43Z","modified":"2023-02-03T05:00:36Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:52:49.509208Z"}],"nvd":[{"id":"CVE-2015-2319","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2018-01-08T19:29:00.86Z","modified":"2026-06-17T00:23:55.077Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:03:19.244941Z"}],"osv":[{"id":"CVE-2015-2319","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2018-01-08T19:29:00Z","modified":"2026-04-16T06:16:38.127023366Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-2319","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2018-01-08T19:29:00.86Z","modified":"2026-09-09T07:00:39.067585589Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"UBUNTU-CVE-2015-2319","description":"The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the \"FREAK\" issue, a different vulnerability than CVE-2015-0204.","status":"published","published":"2015-03-18T00:00:00Z","modified":"2026-04-22T10:04:58.10743Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:10.045446Z"},{"id":"DLA-176-1","title":"mono - security update","status":"published","published":"2015-03-19T00:00:00Z","modified":"2026-03-09T01:19:13.00958Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DSA-3202-1","title":"mono - security update","status":"published","published":"2015-03-22T00:00:00Z","modified":"2026-03-09T01:19:22.248216Z","updated_at":"2026-11-02T15:46:15.843838Z"},{"id":"MGASA-2015-0156","title":"Updated mono packages fix security vulnerabilities","description":"A TLS impersonation attack was discovered in Mono's TLS stack by researchers\nat Inria (CVE-2015-2318). During checks on the TLS stack, they have discovered\ntwo further issues which have been fixed, a vulnerability to a protocol\ndowngrade attack (CVE-2015-2319) and SSLv2 support still being available\n(CVE-2013-2320).\n","status":"published","published":"2015-04-15T16:07:57Z","modified":"2026-04-16T06:23:46.448550571Z","updated_at":"2026-11-02T15:49:39.488462Z"},{"id":"openSUSE-SU-2024:10476-1","title":"ibm-data-db2-4.6.2-1.1 on GA media","description":"These are all security issues fixed in the ibm-data-db2-4.6.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:32:44.498358Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"SUSE-SU-2015:0841-1","title":"Recommended update for mono-core","description":"\nThis update adds handling of SHA256 hashes to parts of the X509 Certificate \nclasses in the C# implementation of Mono (bnc#871362) and improves handling \nof non-existing certificate revocation lists (bnc#810747, bnc#606002).\n\n","status":"published","published":"2014-04-10T23:19:27Z","modified":"2026-02-04T04:20:02.166991Z","updated_at":"2026-11-02T15:53:41.276824Z"},{"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"}]}}