{"id":"UBUNTU-CVE-2018-1000654","details":"GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.","modified":"2026-04-22T12:42:20.301011Z","published":"2018-08-20T19:31:00Z","related":["USN-5352-1"],"upstream":["CVE-2018-1000654"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1000654"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5352-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1000654"}],"affected":[{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@3.4-3ubuntu0.6+esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3-2","3.4-2","3.4-3","3.4-3ubuntu0.1","3.4-3ubuntu0.2","3.4-3ubuntu0.3","3.4-3ubuntu0.4","3.4-3ubuntu0.5","3.4-3ubuntu0.6","3.4-3ubuntu0.6+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libtasn1-3-bin","binary_version":"3.4-3ubuntu0.6+esm1"},{"binary_name":"libtasn1-6","binary_version":"3.4-3ubuntu0.6+esm1"},{"binary_name":"libtasn1-bin","binary_version":"3.4-3ubuntu0.6+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000654.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.7-3ubuntu0.16.04.3+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7-3ubuntu0.16.04.3+esm2"}]}],"versions":["4.5-2","4.7-2","4.7-3","4.7-3ubuntu0.16.04.1","4.7-3ubuntu0.16.04.2","4.7-3ubuntu0.16.04.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libtasn1-3-bin","binary_version":"4.7-3ubuntu0.16.04.3+esm2"},{"binary_name":"libtasn1-6","binary_version":"4.7-3ubuntu0.16.04.3+esm2"},{"binary_name":"libtasn1-bin","binary_version":"4.7-3ubuntu0.16.04.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000654.json"}},{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.13-2ubuntu0.1~esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12-2.1","4.12-3","4.13-2","4.13-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libtasn1-6","binary_version":"4.13-2ubuntu0.1~esm1"},{"binary_name":"libtasn1-bin","binary_version":"4.13-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000654.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"negligible"}]}