{"id":"UBUNTU-CVE-2015-2141","details":"The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm, which allows remote attackers to obtain private keys via a timing attack.","modified":"2025-09-08T16:43:20Z","published":"2015-07-01T14:59:00Z","upstream":["CVE-2015-2141"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-2141"},{"type":"REPORT","url":"https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff"},{"type":"REPORT","url":"https://eprint.iacr.org/2015/368"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-2141"}],"affected":[{"package":{"name":"libcrypto++","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libcrypto++@5.6.1-6+deb8u1build0.14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-6+deb8u1build0.14.04.1"}]}],"versions":["5.6.1-6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.6.1-6+deb8u1build0.14.04.1","binary_name":"libcrypto++-dev"},{"binary_version":"5.6.1-6+deb8u1build0.14.04.1","binary_name":"libcrypto++-utils"},{"binary_version":"5.6.1-6+deb8u1build0.14.04.1","binary_name":"libcrypto++9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-2141.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}