{"id":"CVE-2018-19158","aliases":["ALPINE-CVE-2018-19158","EUVD-2018-10869","GHSA-6qjp-rcvg-5vvh"],"status":"published","title":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial...","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","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":0.02597,"percentile":0.85436,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2019-03-17T21:22:48Z","modified":"2026-10-23T17:24:31Z","fixes":[{"ecosystem":"Alpine:v3.5","package":"php5","fixed_in":["5.6.39-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.5","package":"php5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.39-r0"}]}]}],"products":[{"vendor":"colossusxt","product":"colossuscoinxt"}],"references":[{"url":"https://medium.com/%40dsl_uiuc/fake-stake-attacks-on-chain-based-proof-of-stake-cryptocurrencies-b8b05723f806","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://fc19.ifca.ai/preproceedings/180-preproceedings.pdf","tags":["x_refsource_MISC","x_transferred","Technical Description","Third Party Advisory","advisory"]},{"url":"https://github.com/ColossusCoinXT/ColossusCoinXT/compare/0223904...9666bb8","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19158"},{"url":"https://medium.com/@dsl_uiuc/fake-stake-attacks-on-chain-based-proof-of-stake-cryptocurrencies-b8b05723f806"},{"url":"https://github.com/advisories/GHSA-6qjp-rcvg-5vvh"},{"url":"https://security.alpinelinux.org/vuln/CVE-2018-19158","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2018-19158","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2019-03-17T21:22:48Z","modified":"2024-08-05T11:30:04.112Z","updated_at":"2026-11-02T14:35:03.288698Z"}],"euvd":[{"id":"EUVD-2018-10869","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2019-03-17T21:22:48Z","modified":"2024-08-05T11:30:04Z","updated_at":"2026-11-03T02:39:34.247095Z"}],"ghsa":[{"id":"GHSA-6qjp-rcvg-5vvh","title":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial...","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2022-05-13T01:30:41Z","modified":"2023-02-01T05:08:15Z","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-400"],"updated_at":"2026-11-02T14:50:42.874485Z"}],"nvd":[{"id":"CVE-2018-19158","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2019-03-21T16:00:30.14Z","modified":"2026-06-17T01:48:53.423Z","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-400"],"updated_at":"2026-11-02T14:04:54.21788Z"}],"osv":[{"id":"ALPINE-CVE-2018-19158","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2019-03-21T16:00:30.14Z","modified":"2026-10-23T17:24:31.493020442Z","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":"2026-11-02T15:27:47.187336Z"},{"id":"CVE-2018-19158","description":"ColossusCoinXT through 1.0.5 (a chain-based proof-of-stake cryptocurrency) allows a remote denial of service, exploitable by an attacker who acquires even a small amount of stake/coins in the system. The attacker sends invalid headers/blocks, which are stored on the victim's disk.","status":"published","published":"2019-03-21T16:00:30.14Z","modified":"2026-10-20T10:47:35.416253298Z","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":"2026-11-02T15:44:08.834469Z"}]}}