{"id":"CVE-2015-2141","aliases":["DEBIAN-CVE-2015-2141","DLA-262-1","DSA-3296-1","EUVD-2015-2251","GHSA-xm6q-j5wx-7362","MGASA-2015-0317","UBUNTU-CVE-2015-2141","openSUSE-SU-2024:10336-1"],"status":"published","title":"The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not...","description":"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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02858,"percentile":0.86838,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2015-06-29T00:00:00Z","modified":"2026-09-09T06:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"libcrypto++","fixed_in":["5.6.1-7"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libcrypto++","fixed_in":["5.6.1-7"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libcrypto++","fixed_in":["5.6.1-7"],"sources":["osv"]},{"ecosystem":"Debian:6.0","package":"libcrypto++","fixed_in":["5.6.0-6+deb6u1"],"sources":["osv"]},{"ecosystem":"Debian:7","package":"libcrypto++","fixed_in":["5.6.1-6+deb7u1"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"libcrypto++","fixed_in":["5.6.1-6+deb8u1"],"sources":["osv"]},{"ecosystem":"Mageia:4","package":"libcryptopp","fixed_in":["5.6.2-2.1.mga4"],"sources":["osv"]},{"ecosystem":"Mageia:5","package":"libcryptopp","fixed_in":["5.6.2-4.1.mga5"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"libcrypto++","fixed_in":["5.6.1-6+deb8u1build0.14.04.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"libcryptopp","fixed_in":["5.6.4-1.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-7"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-7"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-7"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.0-6+deb6u1"}]}],"versions":["5.6.0-6"]},{"source":"osv","ecosystem":"Debian:7","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-6+deb7u1"}]}],"versions":["5.6.1-6"]},{"source":"osv","ecosystem":"Debian:8","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-6+deb8u1"}]}],"versions":["5.6.1-6"]},{"source":"osv","ecosystem":"Mageia:4","package":"libcryptopp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.2-2.1.mga4"}]}]},{"source":"osv","ecosystem":"Mageia:5","package":"libcryptopp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.2-4.1.mga5"}]}]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"libcrypto++","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.1-6+deb8u1build0.14.04.1"}]}],"versions":["5.6.1-6"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"libcryptopp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.4-1.3"}]}]}],"products":[{"vendor":"cryptopp","product":"crypto\\+\\+_library"},{"vendor":"opensuse","product":"opensuse"}],"references":[{"url":"http://www.debian.org/security/2015/dsa-3296","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/bid/75467","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://sourceforge.net/p/cryptopp/code/542/","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff","tags":["x_refsource_CONFIRM","x_transferred","fix","report"]},{"url":"http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2141"},{"url":"http://sourceforge.net/p/cryptopp/code/542"},{"url":"https://github.com/advisories/GHSA-xm6q-j5wx-7362"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-2141","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0317.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=16426","tags":["report"]},{"url":"https://www.debian.org/security/2015/dsa-3296","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2015-2141","tags":["report"]},{"url":"https://eprint.iacr.org/2015/368","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-2141","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2141","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-2141","description":"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.","status":"published","published":"2015-07-01T14:00:00Z","modified":"2024-08-06T05:02:43.454Z","updated_at":"2026-11-02T14:35:41.621934Z"}],"euvd":[{"id":"EUVD-2015-2251","description":"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.","status":"published","published":"2015-07-01T14:00:00Z","modified":"2024-08-06T05:02:43Z","updated_at":"2026-11-03T02:22:12.830256Z"}],"ghsa":[{"id":"GHSA-xm6q-j5wx-7362","title":"The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not...","description":"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.","status":"published","published":"2022-05-14T02:06:48Z","modified":"2025-04-12T12:50:18Z","cwes":["CWE-200"],"updated_at":"2026-11-02T15:01:22.814855Z"}],"nvd":[{"id":"CVE-2015-2141","description":"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.","status":"published","published":"2015-07-01T14:59:06.033Z","modified":"2026-06-17T00:23:39.357Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:03:05.884985Z"}],"osv":[{"id":"CVE-2015-2141","description":"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.","status":"published","published":"2015-07-01T14:59:06Z","modified":"2026-04-16T06:21:48.756163432Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-2141","description":"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.","status":"published","published":"2015-07-01T14:59:06.033Z","modified":"2026-09-09T06:47:28.803603696Z","updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"DLA-262-1","title":"libcrypto++ - security update","status":"published","published":"2015-06-30T00:00:00Z","modified":"2026-03-09T01:19:35.096906Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-3296-1","title":"libcrypto++ - security update","status":"published","published":"2015-06-29T00:00:00Z","modified":"2026-03-09T01:22:14.017567Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"MGASA-2015-0317","title":"Updated libcryptopp package fixes security vulnerability","description":"Evgeny Sidorov discovered that libcryptopp did not properly implement\nblinding to mask private key operations for the Rabin-Williams digital\nsignature algorithm. This could allow remote attackers to mount a timing\nattack and retrieve the user's private key (CVE-2015-2141).\n","status":"published","published":"2015-08-21T18:54:52Z","modified":"2026-04-16T06:23:43.187340551Z","updated_at":"2026-11-02T15:49:39.792687Z"},{"id":"openSUSE-SU-2024:10336-1","title":"libcryptopp-devel-5.6.4-1.3 on GA media","description":"These are all security issues fixed in the libcryptopp-devel-5.6.4-1.3 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:16:45.955545Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"UBUNTU-CVE-2015-2141","description":"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.","status":"published","published":"2015-07-01T14:59:00Z","modified":"2026-04-22T10:03:17.377839Z","updated_at":"2026-11-02T15:54:10.045446Z"}]}}