{"id":"CVE-2018-18226","aliases":["DEBIAN-CVE-2018-18226","DSA-4359-1","EUVD-2018-9963","GHSA-9fc9-pcc6-hcpv","SUSE-SU-2020:0693-1","UBUNTU-CVE-2018-18226","openSUSE-SU-2020:0362-1","openSUSE-SU-2024:11513-1"],"status":"published","title":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This...","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. 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approach.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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":0.03166,"percentile":0.88086,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-772"],"published":"2018-10-12T05:00:00Z","modified":"2026-10-24T10:30:59Z","fixes":[{"ecosystem":"Debian:12","package":"wireshark","fixed_in":["2.6.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"wireshark","fixed_in":["2.6.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"wireshark","fixed_in":["2.6.4-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"wireshark","fixed_in":["2.6.4-2~ubuntu14.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"wireshark","fixed_in":["2.6.4-2~ubuntu16.04.0"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"wireshark","fixed_in":["2.6.4-2~ubuntu18.04.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"wireshark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"wireshark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"wireshark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.4-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"wireshark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-1~deb9u1"}]}],"versions":["2.2.6+g32dac6a-2","2.2.6+g32dac6a-2+deb9u1","2.2.6+g32dac6a-2+deb9u2","2.2.6+g32dac6a-2+deb9u3","2.2.7-1","2.4.0-1","2.4.1-1","2.4.2-1","2.4.3-1","2.4.4-1","2.4.5-1","2.4.6-1","2.6.1-1","2.6.2-1","2.6.2-2","2.6.3-1","2.6.3-1~deb9u1","2.6.4-1","2.6.4-2"],"bundled":11},{"source":"osv","ecosystem":"SUSE:Linux 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tps://www.suse.com/security/cve/CVE-2017-6474","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7700","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7701","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7702","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7703","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7704","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7705","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7745","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7746","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7747","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7748","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9343","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9346","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9347","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9348","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9349","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9350","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9351","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9352","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9353","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9354","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5334","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5335","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5336","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7320","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7321","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7325","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7329","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7333","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7334","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7335","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7336","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7337","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7417","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7419","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7420","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9256","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9257","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9258","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9260","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9261","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9262","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9263","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9264","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9265","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9269","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9273","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11647","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-13164","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15466","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-17498","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25862","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25863","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25866","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26419","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26420","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26422","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26575","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-28030","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-22173","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-22174","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-22191","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-22207","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-22235","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-18226","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.","status":"published","published":"2018-10-12T05:00:00Z","modified":"2024-08-05T11:01:15.077Z","updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2018-9963","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.","status":"published","published":"2018-10-12T05:00:00Z","modified":"2024-08-05T11:01:15Z","updated_at":"2026-11-03T02:39:36.74767Z"}],"ghsa":[{"id":"GHSA-9fc9-pcc6-hcpv","title":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This...","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. 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This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.","status":"published","published":"2018-10-12T06:29:01.113Z","modified":"2026-06-17T01:46:52.23Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:04:44.873741Z"}],"osv":[{"id":"CVE-2018-18226","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. 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This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.","status":"published","published":"2018-10-12T06:29:01.113Z","modified":"2026-10-23T18:04:47.138588934Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"UBUNTU-CVE-2018-18226","description":"In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.","status":"published","published":"2018-10-12T06:29:00Z","modified":"2026-04-22T11:48:51.744122Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:17.496046Z"},{"id":"DSA-4359-1","title":"wireshark - security update","status":"published","published":"2018-12-27T00:00:00Z","modified":"2026-03-09T02:11:00.057274Z","updated_at":"2026-11-02T15:46:16.862196Z"},{"id":"openSUSE-SU-2020:0362-1","title":"Security update for wireshark","description":"This update for wireshark and libmaxminddb fixes the following issues:\n\nUpdate wireshark to new major version 3.2.2 and introduce libmaxminddb for GeoIP support (bsc#1156288).\n\nNew features include:\n\n- Added support for 111 new protocols, including WireGuard, LoRaWAN, TPM 2.0, 802.11ax and QUIC\n- Improved support for existing protocols, like HTTP/2\n- Improved analytics and usability functionalities\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-03-19T19:19:35Z","modified":"2026-02-04T04:38:44.359525Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2024:11513-1","title":"libwireshark14-3.4.8-1.2 on GA media","description":"These are all security issues fixed in the libwireshark14-3.4.8-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:58:40.825311Z","updated_at":"2026-11-02T16:58:35.195147Z"},{"id":"SUSE-SU-2020:0693-1","title":"Security update for wireshark","description":"This update for wireshark and libmaxminddb fixes the following issues:\n\nUpdate wireshark to new major version 3.2.2 and introduce libmaxminddb for GeoIP support (bsc#1156288).\n\nNew features include:\n\n- Added support for 111 new protocols, including WireGuard, LoRaWAN, TPM 2.0, 802.11ax and QUIC\n- Improved support for existing protocols, like HTTP/2\n- Improved analytics and usability functionalities\n","status":"published","published":"2020-04-08T12:11:42Z","modified":"2026-02-04T04:34:24.153787Z","updated_at":"2026-11-02T15:53:47.06185Z"}]}}