{"id":"UBUNTU-CVE-2015-7511","details":"Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.","modified":"2026-04-22T10:18:39.064266Z","published":"2015-12-31T00:00:00Z","related":["USN-2896-1"],"upstream":["CVE-2015-7511"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-7511"},{"type":"REPORT","url":"http://www.cs.tau.ac.IL/~tromer/ecdh/"},{"type":"REPORT","url":"https://lists.gnupg.org/pipermail/gnupg-announce/2016q1/000384.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2896-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-7511"}],"affected":[{"package":{"name":"libgcrypt11","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libgcrypt11@1.5.3-2ubuntu4.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.3-2ubuntu4.3"}]}],"versions":["1.5.0-3ubuntu3","1.5.3-2ubuntu1","1.5.3-2ubuntu4","1.5.3-2ubuntu4.1","1.5.3-2ubuntu4.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.5.3-2ubuntu4.3","binary_name":"libgcrypt11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-7511.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}