{"id":"UBUNTU-CVE-2016-2177","details":"OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.","modified":"2026-04-22T10:36:37.264944Z","published":"2016-06-19T00:00:00Z","related":["USN-3087-1","USN-3181-1"],"upstream":["CVE-2016-2177"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-2177"},{"type":"REPORT","url":"https://www.openssl.org/news/secadv/20160922.txt"},{"type":"REPORT","url":"https://www.openssl.org/blog/blog/2016/06/27/undefined-pointer-arithmetic/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3087-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3181-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-2177"}],"affected":[{"package":{"name":"openssl","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/openssl@1.0.1f-1ubuntu2.22?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.1f-1ubuntu2.22"}]}],"versions":["1.0.1e-3ubuntu1","1.0.1e-4ubuntu1","1.0.1e-4ubuntu2","1.0.1e-4ubuntu3","1.0.1e-4ubuntu4","1.0.1f-1ubuntu1","1.0.1f-1ubuntu2","1.0.1f-1ubuntu2.1","1.0.1f-1ubuntu2.2","1.0.1f-1ubuntu2.3","1.0.1f-1ubuntu2.4","1.0.1f-1ubuntu2.5","1.0.1f-1ubuntu2.7","1.0.1f-1ubuntu2.8","1.0.1f-1ubuntu2.11","1.0.1f-1ubuntu2.12","1.0.1f-1ubuntu2.15","1.0.1f-1ubuntu2.16","1.0.1f-1ubuntu2.17","1.0.1f-1ubuntu2.18","1.0.1f-1ubuntu2.19","1.0.1f-1ubuntu2.20","1.0.1f-1ubuntu2.21"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssl1.0.0","binary_version":"1.0.1f-1ubuntu2.22"},{"binary_name":"openssl","binary_version":"1.0.1f-1ubuntu2.22"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-2177.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/openssl@1.0.2g-1ubuntu4.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.4"}]}],"versions":["1.0.2d-0ubuntu1","1.0.2d-0ubuntu2","1.0.2e-1ubuntu1","1.0.2f-2ubuntu1","1.0.2g-1ubuntu2","1.0.2g-1ubuntu3","1.0.2g-1ubuntu4","1.0.2g-1ubuntu4.1","1.0.2g-1ubuntu4.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssl1.0.0","binary_version":"1.0.2g-1ubuntu4.4"},{"binary_name":"openssl","binary_version":"1.0.2g-1ubuntu4.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-2177.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}