yaSSL CyaSSL up to 2.4.6 cryptographic issues

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as problematic has been found in yaSSL CyaSSL. This affects some unknown processing. The manipulation with an unknown input leads to a cryptographic issues vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality. The summary by CVE is:

The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

The weakness was released 02/08/2013 (Website). It is possible to read the advisory at yassl.com. This vulnerability is uniquely identified as CVE-2013-1623 since 02/05/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 69508 (GLSA-201308-06 : MySQL: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 1.4.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (81907) and Tenable (69508).





CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Reliability: 🔍


VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Cryptographic issues
CWE: CWE-310

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 69508
Nessus Name: GLSA-201308-06 : MySQL: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 841406
OpenVAS Name: Ubuntu Update for mysql-5.5 USN-1807-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CyaSSL 1.4.0


02/05/2013 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/08/2013 +3 days 🔍
02/08/2013 +0 days 🔍
03/20/2013 +40 days 🔍
03/24/2013 +4 days 🔍
03/24/2015 +730 days 🔍
12/29/2021 +2472 days 🔍


Advisory: yassl.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-1623 (🔍)

X-Force: 81907
Vulnerability Center: 38860 - CyaSSL <2.5.0 wolfSSL TLS and DTLS Implementations Allow Remote Distinguishing Attacks, Medium
SecurityFocus: 57780 - CyaSSL CVE-2013-1623 Information Disclosure Vulnerability
Secunia: 52445 - Oracle MySQL yaSSL Two Buffer Overflow Vulnerabilities, Moderately Critical


Created: 03/24/2015 12:22 PM
Updated: 12/29/2021 08:21 AM
Changes: 03/24/2015 12:22 PM (67), 04/26/2017 05:36 PM (6), 12/29/2021 08:21 AM (3)
Complete: 🔍
Cache ID: 3:FED:40


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