{"id":"CVE-2019-12175","aliases":["EUVD-2019-3824","GHSA-m47c-xm2p-2v99","UBUNTU-CVE-2019-12175"],"status":"published","title":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference...","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","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":"2026-11-10","score":0.01411,"percentile":0.72903,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2019-07-17T16:40:14Z","modified":"2026-10-20T10:49:46Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"bro","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4+dfsg-1","2.4.1+dfsg-1","2.4.1+dfsg-2","2.4.1+dfsg-2build1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"bro","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.1-1build1","2.5.2-1","2.5.2-2","2.5.3-1","2.5.3-1build1"]}],"products":[{"vendor":"zeek","product":"zeek"}],"references":[{"url":"https://github.com/zeek/zeek/releases/tag/v2.6.2","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12175"},{"url":"https://github.com/advisories/GHSA-m47c-xm2p-2v99"},{"url":"https://ubuntu.com/security/CVE-2019-12175","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-12175","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-12175","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2019-07-17T16:40:14Z","modified":"2024-08-04T23:10:30.842Z","updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2019-3824","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2019-07-17T16:40:14Z","modified":"2024-08-04T23:10:30Z","updated_at":"2026-11-03T02:40:46.843701Z"}],"ghsa":[{"id":"GHSA-m47c-xm2p-2v99","title":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference...","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2022-05-24T16:50:31Z","modified":"2024-04-04T01:17:20Z","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"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:55:56.730661Z"}],"nvd":[{"id":"CVE-2019-12175","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2019-07-17T17:15:13.28Z","modified":"2026-06-17T02:14:11.97Z","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":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:05:20.616405Z"}],"osv":[{"id":"CVE-2019-12175","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2019-07-17T17:15:13.28Z","modified":"2026-10-20T10:49:46.503256027Z","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":"2026-11-02T15:44:10.718934Z"},{"id":"UBUNTU-CVE-2019-12175","description":"In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.","status":"published","published":"2019-07-17T17:15:00Z","modified":"2025-10-24T04:47:39Z","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":"2026-11-02T15:54:19.202697Z"}]}}