Vulnerability Details : 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.
Products affected by CVE-2015-7744
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
- cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
- cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
- cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
- cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
Threat overview for CVE-2015-7744
Top countries where our scanners detected CVE-2015-7744
Top open port discovered on systems with this issue
3306
IPs affected by CVE-2015-7744 395,324
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2015-7744!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2015-7744
0.84%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-7744
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.6
|
LOW | AV:N/AC:H/Au:N/C:P/I:N/A:N |
4.9
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
References for CVE-2015-7744
-
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
Oracle Critical Patch Update - January 2016Vendor Advisory
-
https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Factoring RSA Keys With TLS Perfect Forward Secrecy - Red Hat Customer PortalExploit;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00016.html
[security-announce] openSUSE-SU-2016:0377-1: important: Security updateMailing List;Third 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
Two Vulnerabilities Recently Found, An Attack on RSA using CRT and DoS Vulnerability With DTLS - wolfSSLVendor Advisory
-
http://www.securitytracker.com/id/1034708
MySQL Multiple Bugs Let Remote Users Access Data and Deny Service, Remote Authenticated Users Modify Data, and Local Users Gain Elevated Privileges - SecurityTrackerBroken Link;Third Party Advisory;VDB Entry
-
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Oracle Solaris Bulletin - April 2016Third Party Advisory
-
https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
Exploit;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00015.html
[security-announce] openSUSE-SU-2016:0367-1: important: Security updateMailing List;Third Party Advisory
-
http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
wolfSSL Changelog | wolfSSL Embedded SSL/TLS Library DocumentationRelease Notes;Vendor Advisory
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