{"id":"UBUNTU-CVE-2018-16881","details":"A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.","modified":"2026-02-04T04:21:46.186188Z","published":"2019-01-25T18:29:00Z","related":["USN-5419-1"],"upstream":["CVE-2018-16881"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16881"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881"},{"type":"REPORT","url":"https://github.com/rsyslog/rsyslog/commit/6c52f29d593a27f934a1871d40eed84ebde3f3a6"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5419-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-16881"}],"affected":[{"package":{"name":"rsyslog","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/rsyslog@7.4.4-1ubuntu2.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.11-2ubuntu4","7.4.4-1ubuntu1","7.4.4-1ubuntu2","7.4.4-1ubuntu2.1","7.4.4-1ubuntu2.3","7.4.4-1ubuntu2.5","7.4.4-1ubuntu2.6","7.4.4-1ubuntu2.7"],"ecosystem_specific":{"binaries":[{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog"},{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog-gnutls"},{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog-gssapi"},{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog-mysql"},{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog-pgsql"},{"binary_version":"7.4.4-1ubuntu2.7","binary_name":"rsyslog-relp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16881.json"}},{"package":{"name":"rsyslog","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/rsyslog@8.16.0-1ubuntu3.1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.16.0-1ubuntu3.1+esm1"}]}],"versions":["8.12.0-1ubuntu2","8.12.0-1ubuntu3","8.14.0-2ubuntu1","8.14.0-2ubuntu2","8.16.0-1ubuntu1","8.16.0-1ubuntu2","8.16.0-1ubuntu3","8.16.0-1ubuntu3.1"],"ecosystem_specific":{"binaries":[{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-elasticsearch"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-gnutls"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-gssapi"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-mysql"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-pgsql"},{"binary_version":"8.16.0-1ubuntu3.1+esm1","binary_name":"rsyslog-relp"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-16881.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:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}