{"id":"UBUNTU-CVE-2016-9841","details":"inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.","modified":"2026-05-20T16:03:20.898986422Z","published":"2017-05-23T04:29:00Z","related":["USN-4246-1","USN-4292-1","USN-6736-1","USN-6736-2"],"upstream":["CVE-2016-9841"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9841"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/12/05/21"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4246-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4292-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-9841"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6736-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6736-2"}],"affected":[{"package":{"name":"klibc","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=trusty%2Fesm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.3-0ubuntu1.14.04.3+esm3"}]}],"versions":["2.0.1-3.1ubuntu2","2.0.2-1ubuntu1","2.0.2-1ubuntu2","2.0.3-0ubuntu1","2.0.3-0ubuntu1.14.04.1","2.0.3-0ubuntu1.14.04.2","2.0.3-0ubuntu1.14.04.3","2.0.3-0ubuntu1.14.04.3+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.3-0ubuntu1.14.04.3+esm3"},{"binary_name":"libklibc","binary_version":"2.0.3-0ubuntu1.14.04.3+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zlib","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/zlib?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2.8.dfsg-1ubuntu1","1:1.2.8.dfsg-1ubuntu1.1","1:1.2.8.dfsg-1ubuntu1.1+esm1","1:1.2.8.dfsg-1ubuntu1.1+esm2","1:1.2.8.dfsg-1ubuntu1.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"lib32z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"lib64z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"libx32z1","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"zlib-bin","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"},{"binary_name":"zlib1g","binary_version":"1:1.2.8.dfsg-1ubuntu1.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.1-3ubuntu1.3"}]}],"versions":["3.1.1-3","3.1.1-3ubuntu1","3.1.1-3ubuntu1.1","3.1.1-3ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"rsync","binary_version":"3.1.1-3ubuntu1.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zlib","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/zlib?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.2.8.dfsg-2ubuntu4.3"}]}],"versions":["1:1.2.8.dfsg-2ubuntu4","1:1.2.8.dfsg-2ubuntu4.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"lib32z1","binary_version":"1:1.2.8.dfsg-2ubuntu4.3"},{"binary_name":"lib64z1","binary_version":"1:1.2.8.dfsg-2ubuntu4.3"},{"binary_name":"libx32z1","binary_version":"1:1.2.8.dfsg-2ubuntu4.3"},{"binary_name":"zlib1g","binary_version":"1:1.2.8.dfsg-2ubuntu4.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.4-8ubuntu1.16.04.4+esm2"}]}],"versions":["2.0.3-0ubuntu1","2.0.4-4","2.0.4-6","2.0.4-7","2.0.4-8","2.0.4-8ubuntu1","2.0.4-8ubuntu1.16.04.1","2.0.4-8ubuntu1.16.04.2","2.0.4-8ubuntu1.16.04.3","2.0.4-8ubuntu1.16.04.4","2.0.4-8ubuntu1.16.04.4+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.4-8ubuntu1.16.04.4+esm2"},{"binary_name":"libklibc","binary_version":"2.0.4-8ubuntu1.16.04.4+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-2.1ubuntu1.1"}]}],"versions":["3.1.2-2","3.1.2-2.1","3.1.2-2.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"rsync","binary_version":"3.1.2-2.1ubuntu1.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.4-9ubuntu2.2+esm1"}]}],"versions":["2.0.4-9ubuntu1","2.0.4-9ubuntu2","2.0.4-9ubuntu2.1","2.0.4-9ubuntu2.2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.4-9ubuntu2.2+esm1"},{"binary_name":"libklibc","binary_version":"2.0.4-9ubuntu2.2+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-2ubuntu1","0.6.2-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-3ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.7-1ubuntu5.2"}]}],"versions":["2.0.6-1ubuntu1","2.0.6-1ubuntu2","2.0.7-1ubuntu1","2.0.7-1ubuntu3","2.0.7-1ubuntu4","2.0.7-1ubuntu5","2.0.7-1ubuntu5.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.7-1ubuntu5.2"},{"binary_name":"libklibc","binary_version":"2.0.7-1ubuntu5.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"rsync","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/rsync?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3-6"}]}],"ecosystem_specific":{"binaries":[{"binary_name":"rsync","binary_version":"3.1.3-6"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-3ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.10-4ubuntu0.1"}]}],"versions":["2.0.8-6.1ubuntu2","2.0.10-3","2.0.10-4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.10-4ubuntu0.1"},{"binary_name":"libklibc","binary_version":"2.0.10-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-3ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.13-4ubuntu0.1"}]}],"versions":["2.0.13-1","2.0.13-2","2.0.13-2ubuntu1","2.0.13-4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.13-4ubuntu0.1"},{"binary_name":"libklibc","binary_version":"2.0.13-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-5","0.6.2-5build1"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-5build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"klibc","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/klibc?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.13-4ubuntu1"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"klibc-utils","binary_version":"2.0.13-4ubuntu1"},{"binary_name":"libklibc","binary_version":"2.0.13-4ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-7ubuntu1","0.6.2-8"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}},{"package":{"name":"zsync","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/zsync?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2-8","0.6.2-9"],"ecosystem_specific":{"binaries":[{"binary_name":"zsync","binary_version":"0.6.2-9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9841.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}