CVE-2017-7526 (GCVE-0-2017-7526)
Vulnerability from cvelistv5
Published
2018-07-26 13:00
Modified
2025-12-17 22:06
Severity ?
6.1 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE
Summary
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.
References
secalert@redhat.com http://www.securityfocus.com/bid/99338 Third Party Advisory, VDB Entry
secalert@redhat.com http://www.securitytracker.com/id/1038915 Third Party Advisory, VDB Entry
secalert@redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526 Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com https://eprint.iacr.org/2017/627 Third Party Advisory
secalert@redhat.com https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
secalert@redhat.com https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
secalert@redhat.com https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
secalert@redhat.com https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html Mailing List, Vendor Advisory
secalert@redhat.com https://usn.ubuntu.com/3733-1/ Third Party Advisory
secalert@redhat.com https://usn.ubuntu.com/3733-2/ Third Party Advisory
secalert@redhat.com https://www.debian.org/security/2017/dsa-3901 Third Party Advisory
secalert@redhat.com https://www.debian.org/security/2017/dsa-3960 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/99338 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1038915 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7526 Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://eprint.iacr.org/2017/627 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=78130828e9a140a9de4dafadbc844dbb64cb709a
af854a3a-2127-422b-91ae-364da2661108 https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=8725c99ffa41778f382ca97233183bcd687bb0ce
af854a3a-2127-422b-91ae-364da2661108 https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=e6a3dc9900433bbc8ad362a595a3837318c28fa9
af854a3a-2127-422b-91ae-364da2661108 https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/3733-1/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/3733-2/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2017/dsa-3901 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2017/dsa-3960 Third Party Advisory
Impacted products
Vendor Product Version
GnuPG libgcrypt Version: 1.7.8
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