Arch Linux Security Advisory ASA-201710-17 ========================================== Severity: Medium Date : 2017-10-12 CVE-ID : CVE-2017-14737 Package : botan Type : information disclosure Remote : No Link : https://security.archlinux.org/AVG-416 Summary ======= The package botan before version 2.3.0-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 2.3.0-1. # pacman -Syu "botan>=2.3.0-1" The problem has been fixed upstream in version 2.3.0. Workaround ========== None. Description =========== A cryptographic cache-based side channel in the RSA implementation in Botan before 1.10.17, and 1.11.x and 2.x before 2.3.0, allows a local attacker to recover information about RSA secret keys, as demonstrated by CacheD. This occurs because an array is indexed with bits derived from a secret key. Impact ====== A local attacker is able to use a cache-based side channel attack to recover information about RSA secret keys. References ========== https://github.com/randombit/botan/issues/1222 https://github.com/randombit/botan/commit/95df7f155570949837e8e28e733f3d5940... https://github.com/randombit/botan/commit/2718c02d429d024b2cd65534f7e54cab1d... https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presen... https://security.archlinux.org/CVE-2017-14737