Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title libssh2 security update
Name DSA-4431 First vendor Publication 2019-04-13
Vendor Debian Last vendor Modification 2019-04-13
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Chris Coulson discovered several vulnerabilities in libssh2, a SSH2 client-side library, which could result in denial of service, information leaks or the execution of arbitrary code.

For the stable distribution (stretch), these problems have been fixed in version 1.7.0-1+deb9u1.

We recommend that you upgrade your libssh2 packages.

For the detailed security status of libssh2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libssh2

Original Source

Url : http://www.debian.org/security/2019/dsa-4431

CWE : Common Weakness Enumeration

% Id Name
42 % CWE-125 Out-of-bounds Read
33 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
25 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

Application 31
Application 1
Application 1
Application 2
Os 2
Os 3
Os 2
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1

Alert History

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Date Informations
2019-04-13 17:18:19
  • First insertion