{"id":"CVE-2015-3240","aliases":["EUVD-2015-3296","GHSA-m56r-f6p2-qgw5","RHSA-2015:1979"],"status":"published","title":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS,...","description":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02788,"percentile":0.86502,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2015-11-09T16:00:00Z","modified":"2026-06-26T10:28:38Z","fixes":[{"ecosystem":"Red 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Hat:enterprise_linux:7::client","package":"libreswan-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.15-5.el7_1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:7::server","package":"libreswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.15-5.ael7b_1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:7::server","package":"libreswan-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.15-5.ael7b_1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:7::workstation","package":"libreswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.15-5.el7_1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:7::workstation","package":"libreswan-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.15-5.el7_1"}]}]}],"products":[{"vendor":"libreswan","product":"libreswan"}],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2015-1979.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://www.securitytracker.com/id/1033418","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/bid/77536","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://security.gentoo.org/glsa/201603-13","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"https://libreswan.org/security/CVE-2015-3240/CVE-2015-3240.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://lists.openswan.org/pipermail/users/2015-August/023401.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-3240","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2015:1979","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2015-3240","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1232320","tags":["report"]},{"url":"https://libreswan.org/security/CVE-2015-3240"},{"url":"https://github.com/advisories/GHSA-m56r-f6p2-qgw5"},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1268775","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1273719","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_1979.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-3240","tags":["advisory"]},{"url":"https://libreswan.org/security/CVE-2015-3240/","tags":["article"]}],"sources":{"cve":[{"id":"CVE-2015-3240","description":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.","status":"published","published":"2015-11-09T16:00:00Z","modified":"2024-08-06T05:39:32.075Z","updated_at":"2026-11-02T14:35:42.331636Z"}],"euvd":[{"id":"EUVD-2015-3296","description":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.","status":"published","published":"2015-11-09T16:00:00Z","modified":"2024-08-06T05:39:32Z","updated_at":"2026-11-03T02:22:08.642556Z"}],"ghsa":[{"id":"GHSA-m56r-f6p2-qgw5","title":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS,...","description":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.","status":"published","published":"2022-05-17T03:33:10Z","modified":"2025-04-12T12:54:54Z","updated_at":"2026-11-02T15:01:24.694642Z"}],"nvd":[{"id":"CVE-2015-3240","description":"The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.","status":"published","published":"2015-11-09T16:59:01.557Z","modified":"2026-06-17T00:25:36.183Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:03:12.30866Z"}],"osv":[{"id":"RHSA-2015:1979","title":"Red Hat Security Advisory: libreswan security and enhancement update","status":"published","published":"2024-09-15T22:53:30Z","modified":"2026-06-26T10:28:38Z","updated_at":"2026-11-02T15:53:03.182161Z"}]}}