{"id":"USN-3812-1","summary":"nginx vulnerabilities","details":"It was discovered that nginx incorrectly handled the HTTP/2 implementation.\nA remote attacker could possibly use this issue to cause excessive memory\nconsumption, leading to a denial of service. This issue only affected\nUbuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16843)\n\nGal Goldshtein discovered that nginx incorrectly handled the HTTP/2\nimplementation. A remote attacker could possibly use this issue to cause\nexcessive CPU usage, leading to a denial of service. This issue only\naffected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10.\n(CVE-2018-16844)\n\nIt was discovered that nginx incorrectly handled the ngx_http_mp4_module\nmodule. A remote attacker could possibly use this issue with a specially\ncrafted mp4 file to cause nginx to crash, stop responding, or access\narbitrary memory. (CVE-2018-16845)\n","modified":"2026-02-10T04:41:26Z","published":"2018-11-07T15:01:09Z","related":["UBUNTU-CVE-2018-16843","UBUNTU-CVE-2018-16844","UBUNTU-CVE-2018-16845"],"upstream":["CVE-2018-16843","CVE-2018-16844","CVE-2018-16845","UBUNTU-CVE-2018-16843","UBUNTU-CVE-2018-16844","UBUNTU-CVE-2018-16845"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3812-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16843"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16844"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16845"}],"affected":[{"package":{"name":"nginx","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/nginx@1.4.6-1ubuntu3.9?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.6-1ubuntu3.9"}]}],"versions":["1.4.1-3ubuntu1","1.4.3-2ubuntu1","1.4.4-1ubuntu1","1.4.4-2ubuntu1","1.4.4-4ubuntu1","1.4.5-1ubuntu1","1.4.6-1ubuntu2","1.4.6-1ubuntu3","1.4.6-1ubuntu3.1","1.4.6-1ubuntu3.2","1.4.6-1ubuntu3.3","1.4.6-1ubuntu3.4","1.4.6-1ubuntu3.5","1.4.6-1ubuntu3.6","1.4.6-1ubuntu3.7","1.4.6-1ubuntu3.8"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"nginx","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-common","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-core","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-extras","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-full","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-light","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-naxsi","binary_version":"1.4.6-1ubuntu3.9"},{"binary_name":"nginx-naxsi-ui","binary_version":"1.4.6-1ubuntu3.9"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-16845","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3812-1.json"}},{"package":{"name":"nginx","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nginx@1.10.3-0ubuntu0.16.04.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.3-0ubuntu0.16.04.3"}]}],"versions":["1.9.3-1ubuntu1","1.9.6-2ubuntu1","1.9.6-2ubuntu2","1.9.9-0ubuntu1","1.9.9-1ubuntu1","1.9.10-0ubuntu1","1.9.10-1ubuntu1","1.9.11-0ubuntu1","1.9.11-0ubuntu2","1.9.12-0ubuntu1","1.9.13-0ubuntu1","1.9.14-0ubuntu1","1.9.15-0ubuntu1","1.10.0-0ubuntu0.16.04.1","1.10.0-0ubuntu0.16.04.2","1.10.0-0ubuntu0.16.04.3","1.10.0-0ubuntu0.16.04.4","1.10.3-0ubuntu0.16.04.1","1.10.3-0ubuntu0.16.04.2"],"ecosystem_specific":{"availability":"No subscription 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