{"id":"CVE-2016-5827","aliases":["EUVD-2016-6762","GHSA-r9rv-6pgm-3cxf","MGASA-2018-0021","SUSE-SU-2017:1989-1","SUSE-SU-2018:0119-1","UBUNTU-CVE-2016-5827","openSUSE-SU-2024:10947-1"],"status":"published","title":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a...","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03069,"percentile":0.87728,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2017-01-27T22:01:00Z","modified":"2026-10-24T10:30:42Z","affected":[{"source":"osv","ecosystem":"Mageia:5","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0-4.1.mga5"}]}],"bundled":3},{"source":"osv","ecosystem":"Mageia:6","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0-2.1.mga6"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Desktop 12 SP2","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Desktop 12 SP3","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP2","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP3","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP2","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP3","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1-16.3.1"}]}],"bundled":3},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 11 SP4","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.43-1.10.6.1"}]}],"bundled":6},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 11 SP4","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.43-1.10.6.1"}]}],"bundled":6},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 11 SP4","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.43-1.10.6.1"}]}],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1-0ubuntu1","1.0.1-0ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libical","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0-0.5","2.0.0-0.5build1","2.0.0-1ubuntu1","2.0.0-4"]}],"products":[{"vendor":"libical_project","product":"libical"}],"references":[{"url":"http://www.securityfocus.com/bid/91459","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/06/25/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1281043","tags":["x_refsource_MISC","x_transferred","Issue Tracking","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-5827"},{"url":"https://github.com/advisories/GHSA-r9rv-6pgm-3cxf"},{"url":"https://advisories.mageia.org/MGASA-2018-0021.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=21397","tags":["report"]},{"url":"https://lists.opensuse.org/opensuse-updates/2017-07/msg00108.html","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20171989-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1015964","tags":["report"]},{"url":"https://bugzilla.suse.com/1044995","tags":["report"]},{"url":"https://bugzilla.suse.com/986631","tags":["report"]},{"url":"https://bugzilla.suse.com/986639","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5824","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5827","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9584","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20180119-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/986632","tags":["report"]},{"url":"https://bugzilla.suse.com/986642","tags":["report"]},{"url":"https://bugzilla.suse.com/986658","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5823","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5825","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-5826","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2016-5827","tags":["report"]},{"url":"http://seclists.org/oss-sec/2016/q2/604","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-5827","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2016-5827","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2017-01-27T22:01:00Z","modified":"2024-08-06T01:15:10.61Z","updated_at":"2026-11-02T14:33:30.767029Z"}],"euvd":[{"id":"EUVD-2016-6762","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2017-01-27T22:01:00Z","modified":"2024-08-06T01:15:10Z","updated_at":"2026-11-03T02:22:41.580609Z"}],"ghsa":[{"id":"GHSA-r9rv-6pgm-3cxf","title":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a...","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2022-05-13T01:28:12Z","modified":"2023-02-01T05:07:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:50:38.940908Z"}],"nvd":[{"id":"CVE-2016-5827","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2017-01-27T22:59:00.71Z","modified":"2026-06-17T00:50:06.157Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:03:35.029632Z"}],"osv":[{"id":"CVE-2016-5827","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2017-01-27T22:59:00.71Z","modified":"2026-10-24T10:30:42.27530672Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:02.776224Z"},{"id":"UBUNTU-CVE-2016-5827","description":"The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.","status":"published","published":"2017-01-27T22:59:00Z","modified":"2026-04-22T10:53:40.22792Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:12.642042Z"},{"id":"MGASA-2018-0021","title":"Updated libical packages fix security vulnerability","description":"libical 1.0 allows remote attackers to cause a denial of service\n(use-after-free) via a crafted ics file (CVE-2016-5824).\n\nThe icaltime_from_string function in libical 0.47 and 1.0 allows remote\nattackers to cause a denial of service (out-of-bounds heap read) via a\ncrafted string to the icalparser_parse_string function (CVE-2016-5827).\n\nlibical allows remote attackers to cause a denial of service\n(use-after-free) and possibly read heap memory via a crafted ics file\n(CVE-2016-9584).\n","status":"published","published":"2018-01-02T16:25:41Z","modified":"2026-04-16T06:26:04.226347193Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2024:10947-1","title":"libical-devel-3.0.10-1.4 on GA media","description":"These are all security issues fixed in the libical-devel-3.0.10-1.4 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:25:54.569878Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"SUSE-SU-2017:1989-1","title":"Security update for libical","description":"This update for libical fixes the following issues:\n\nSecurity issues fixed:\n- CVE-2016-5824: libical 1.0 allows remote attackers to cause a denial of service (use-after-free)\n  via a crafted ics file. (bsc#986639)\n- CVE-2016-5827: The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers\n  to cause a denial of service (out-of-bounds heap read) via a crafted string to the\n  icalparser_parse_string function. (bsc#986631)\n- CVE-2016-9584: libical allows remote attackers to cause a denial of service (use-after-free) and\n  possibly read heap memory via a crafted ics file. (bsc#1015964)\n\nBug fixes:\n- libical crashes while parsing timezones (bsc#1044995)\n","status":"published","published":"2017-07-28T08:44:03Z","modified":"2026-02-04T03:39:17.39026Z","updated_at":"2026-11-02T15:53:44.209561Z"},{"id":"SUSE-SU-2018:0119-1","title":"Recommended update for libical","description":"This update for libical fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2016-5823: The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote\n  attackers to cause a denial of service (use-after-free) via a crafted ics file. (bnc#986632)\n- CVE-2016-5824: libical 1.0 allows remote attackers to cause a denial of service (use-after-free)\n  via a crafted ics file. (bsc#986639)\n- CVE-2016-5825: The icalparser_parse_string function in libical 0.47 and 1.0 allows remote\n  attackers to cause a denial of service (out-of-bounds heap read) via a crafted ics file.\n  (bsc#986642)\n- CVE-2016-5826: The parser_get_next_char function in libical 0.47 and 1.0 allows remote attackers\n  to cause a denial of service (out-of-bounds heap read) by crafting a string to the\n  icalparser_parse_string function. (bsc#986658)\n- CVE-2016-5827: The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers\n  to cause a denial of service (out-of-bounds heap read) via a crafted string to the\n  icalparser_parse_string function. (bsc#986631)\n- CVE-2016-9584: libical allows remote attackers to cause a denial of service (use-after-free) and\n  possibly read heap memory via a crafted ics file. (bnc#1015964)\n\nBug fixes:\n\n- libical crashes while parsing timezones (bsc#1044995)\n","status":"published","published":"2018-01-17T10:52:10Z","modified":"2026-02-04T02:55:20.160027Z","updated_at":"2026-11-02T15:53:44.594517Z"}]}}