CVE-2017-7526

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.

• CWE-200
• CWE-310

• http://www.securityfocus.com/bid/99338Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038915Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526Issue Tracking, Patch, Third Party Advisory
• https://eprint.iacr.org/2017/627Third Party Advisory
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
• https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.htmlMailing List, Vendor Advisory
• https://usn.ubuntu.com/3733-1/Third Party Advisory
• https://usn.ubuntu.com/3733-2/Third Party Advisory
• https://www.debian.org/security/2017/dsa-3901Third Party Advisory
• https://www.debian.org/security/2017/dsa-3960Third Party Advisory
• http://www.securityfocus.com/bid/99338Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038915Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526Issue Tracking, Patch, Third Party Advisory
• https://eprint.iacr.org/2017/627Third Party Advisory
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
• https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
• https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.htmlMailing List, Vendor Advisory
• https://usn.ubuntu.com/3733-1/Third Party Advisory
• https://usn.ubuntu.com/3733-2/Third Party Advisory
• https://www.debian.org/security/2017/dsa-3901Third Party Advisory
• https://www.debian.org/security/2017/dsa-3960Third Party Advisory

Published

Jul 26, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2017-7520OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerab…
• CVE-2017-7521OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerab…
• CVE-2017-7522OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerab…
• CVE-2017-7523Cygwin versions 1.7.2 up to and including 1.8.0 are vulnerab…
• CVE-2017-7524tpm2-tools versions before 1.1.1 are vulnerable to a passwor…
• CVE-2017-7525A deserialization flaw was discovered in the jackson-databin…9.8
• CVE-2017-7527Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2017-7528Ansible Tower as shipped with Red Hat CloudForms Management …5.2
• CVE-2017-7529Nginx versions since 0.5.6 up to and including 1.13.2 are vu…7.5
• CVE-2017-7530In CloudForms Management Engine (cfme) before 5.7.3 and 5.8.…8.8
• CVE-2017-7531In Moodle 3.3, the course overview block reveals activities …
• CVE-2017-7532In Moodle 3.x, course creators are able to change system def…