CVE-2015-7744
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.
| Software | From | Fixed in |
|---|---|---|
| wolfssl / wolfssl | - | 3.6.8 |
| opensuse / leap | 42.1 | 42.1.x |
| opensuse / opensuse | 13.1 | 13.1.x |
| opensuse / opensuse | 13.2 | 13.2.x |
| mariadb / mariadb | 10.0.0 | 10.0.22 |
| mariadb / mariadb | 10.1.0 | 10.1.9 |
| mariadb / mariadb | 5.5.0 | 5.5.46 |
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html
- http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.securitytracker.com/id/1034708
- https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
- https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
- https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html
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