{"id":"UBUNTU-CVE-2019-12175","details":"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.","modified":"2025-10-24T04:47:39Z","published":"2019-07-17T17:15:00Z","upstream":["CVE-2019-12175"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12175"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-12175"}],"affected":[{"package":{"name":"bro","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bro@2.4.1+dfsg-2build1?arch=source&distro=xenial"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"bro","binary_version":"2.4.1+dfsg-2build1"},{"binary_name":"bro-common","binary_version":"2.4.1+dfsg-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12175.json"}},{"package":{"name":"bro","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/bro@2.5.3-1build1?arch=source&distro=bionic"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"bro","binary_version":"2.5.3-1build1"},{"binary_name":"bro-common","binary_version":"2.5.3-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12175.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}