Executive Summary

Title h2o security update
Name DSA-4508 First vendor Publication 2019-08-24
Vendor Debian Last vendor Modification 2019-08-24
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:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Three vulnerabilities were discovered in the HTTP/2 code of the H2O HTTP server, which could result in denial of service.

For the stable distribution (buster), these problems have been fixed in version 2.2.5+dfsg2-2+deb10u1.

We recommend that you upgrade your h2o packages.

For the detailed security status of h2o please refer to its security tracker page at: https://security-tracker.debian.org/tracker/h2o

Original Source

Url : http://www.debian.org/security/2019/dsa-4508

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-770 Allocation of Resources Without Limits or Throttling
33 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

Application 12
Os 1

Alert History

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Date Informations
2019-08-24 17:18:42
  • First insertion