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    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.

    Published:Jan 20, 2015
    Last Modified:Apr 12, 2025
    EPS:Jan 22, 2016
    EPSS Score:0.02661
    CVSS Score:5.9

    Affected Products

    Vendor
    Mariadb
    Product
    Mariadb
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Wolfssl
    Product
    Wolfssl

    Exploits

    https://people.redhat.com/~fweimer/rsa-crt-leaks.pdfhttps://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/https://people.redhat.com/~fweimer/rsa-crt-leaks.pdfhttps://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-44173 (CVSS 5) — MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 …
    CVE-2026-44172 (CVSS 6.9) — MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application tha…
    CVE-2026-44171 (CVSS 6.3) — MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 …
    CVE-2026-44170 (CVSS 6.3) — MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 …
    CVE-2026-49261 (CVSS 10) — MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
    CVE-2026-35549 (CVSS 6.5) — An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before…
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    References

    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High