{"id":"CVE-2017-7526","details":"libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.","modified":"2026-03-20T11:21:56.076754Z","published":"2018-07-26T13:29:00.183Z","related":["MGASA-2017-0213","MGASA-2017-0235","SUSE-SU-2017:1793-1","SUSE-SU-2017:1794-1","SUSE-SU-2017:1866-1","SUSE-SU-2017:2699-1","SUSE-SU-2017:2700-1","openSUSE-SU-2024:10941-1"],"references":[{"type":"WEB","url":"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce"},{"type":"WEB","url":"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9"},{"type":"WEB","url":"https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3733-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2017/dsa-3960"},{"type":"ADVISORY","url":"https://eprint.iacr.org/2017/627"},{"type":"ADVISORY","url":"https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3733-2/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2017/dsa-3901"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/99338"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1038915"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526"}],"affected":[{"ranges":[{"type":"GIT","repo":"git://git.gnupg.org/libgcrypt.git","events":[{"introduced":"0"},{"fixed":"b16176769672a659b9a7c1d23325270338323385"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.7.8"}]}}],"versions":["DEVEL-BRANCH-1-1","V-0-2-8","V0-0-0","V0-1-0","V0-2-0","V0-2-10","V0-2-15","V0-2-17","V0-2-18","V0-2-19","V0-2-6","V0-3-0","V0-3-1","V0-3-2","V0-3-3","V0-3-4","V0-3-5","V0-4-0","V0-4-1","V0-4-2","V0-4-3","V0-4-4","V0-4-5","V0-9-0","V0-9-1","V0-9-10","V0-9-11","V0-9-2","V0-9-3","V0-9-4","V0-9-5","V0-9-6","V0-9-7","V0-9-8","V0-9-9","V1-0-0","V1-0-1","V1-0-1-ePit-1","V1-0-2","V1-0-3","V1-0-4","V1-1-0","V1-1-10","V1-1-11","V1-1-12","V1-1-2","V1-1-3","V1-1-4","V1-1-42","V1-1-43","V1-1-44","V1-1-5","V1-1-6","V1-1-7","V1-1-8","V1-1-9","V1-1-90","V1-1-91","V1-1-92","V1-1-93","V1-1-94","V1-2-0","V1-2-1","ecc-integration-done","last-gpl-version","libgcrypt-1.3.0","libgcrypt-1.3.1","libgcrypt-1.3.2","libgcrypt-1.4.0","libgcrypt-1.4.1","libgcrypt-1.4.1rc1","libgcrypt-1.4.2","libgcrypt-1.4.2rc1","libgcrypt-1.4.2rc2","libgcrypt-1.4.3","libgcrypt-1.4.4","libgcrypt-1.5.0","libgcrypt-1.5.0-beta1","libgcrypt-1.6.0","libgcrypt-1.7.0","libgcrypt-1.7.1","libgcrypt-1.7.2","libgcrypt-1.7.3","libgcrypt-1.7.4","libgcrypt-1.7.5","libgcrypt-1.7.6","libgcrypt-1.7.7","marcus-after-thread-cbs","marcus-before-thread-cbs","now-less-freedom-protected","post-nuke-of-trailing-ws"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-7526.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}