CVE-2015-7744

Published: Jan 22, 2016Modified: May 6, 2026

5.9

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.2 / Impact: 3.6

Source: NVD

Description

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 (7)

Products: Wolfssl: Wolfssl · Opensuse: Leap, Opensuse · Mariadb: Mariadb

1 product

2 products

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wolfssl Wolfssl	Before 3.6.8

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Opensuse Leap	Version 42.1
Opensuse Opensuse	Version 13.1
Opensuse Opensuse	Version 13.2

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Mariadb Mariadb	From 10.0.0 to 10.0.22
Mariadb Mariadb	From 10.1.0 to 10.1.9
Mariadb Mariadb	From 5.5.0 to 5.5.46

References (18)

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html

Source: cve@mitre.org

Release NotesVendor Advisory

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

Source: cve@mitre.org

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html

Source: cve@mitre.org

Vendor Advisory

http://www.securitytracker.com/id/1034708

Source: cve@mitre.org

Broken LinkThird Party AdvisoryVDB Entry

https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf

Source: cve@mitre.org

ExploitThird Party Advisory

https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/

Source: cve@mitre.org

ExploitThird Party Advisory

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

Source: cve@mitre.org

Vendor Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://www.securitytracker.com/id/1034708

Source: af854a3a-2127-422b-91ae-364da2661108

Broken LinkThird Party AdvisoryVDB Entry

https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.