Vulnerabilities
Misconfiguration
Compliance
Cryptography
CVE Vulnerabilities

CVE-2015-7744

Published: Jan 22, 2016 | Modified: May 06, 2026
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.6 LOW
AV:N/AC:H/Au:N/C:P/I:N/A:N
RedHat/V2
2.6 LOW
AV:N/AC:H/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2015-7744
CWEhttps://cwe.mitre.org/data/definitions/.html

wolfSSL (formerly CyaSSL) before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem (CRT) process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS handshakes, aka a Lenstra attack.

Affected Software

NameVendorStart VersionEnd Version
WolfsslWolfssl*3.6.8 (excluding)
Mariadb-10.0Ubuntuvivid*
Mariadb-5.5Ubuntutrusty*
Mysql-5.5Ubuntuesm-infra-legacy/trusty*
Mysql-5.5Ubuntuprecise*
Mysql-5.5Ubuntutrusty*
Mysql-5.5Ubuntutrusty/esm*
Mysql-5.6Ubuntutrusty*
Mysql-5.6Ubuntuvivid*
Mysql-5.6Ubuntuwily*
Percona-server-5.6Ubuntuartful*
Percona-server-5.6Ubuntuesm-apps-legacy/xenial*
Percona-server-5.6Ubuntuesm-apps/xenial*
Percona-server-5.6Ubuntuvivid*
Percona-server-5.6Ubuntuwily*
Percona-server-5.6Ubuntuxenial*
Percona-server-5.6Ubuntuyakkety*
Percona-server-5.6Ubuntuzesty*
Percona-xtradb-cluster-5.5Ubuntutrusty*
Percona-xtradb-cluster-5.6Ubuntuesm-apps-legacy/xenial*
Percona-xtradb-cluster-5.6Ubuntuesm-apps/xenial*
Percona-xtradb-cluster-5.6Ubuntuvivid*
Percona-xtradb-cluster-5.6Ubuntuwily*
Percona-xtradb-cluster-5.6Ubuntuxenial*
Percona-xtradb-cluster-5.6Ubuntuyakkety*

References

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