Executive Summary

Informations
Name CVE-2018-6340 First vendor Publication 2018-12-31
Vendor Cve Last vendor Modification 2019-10-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8.1
Base Score 8.1 Environmental Score 8.1
impact SubScore 5.9 Temporal Score 8.1
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The Memcache::getextendedstats function can be used to trigger an out-of-bounds read. Exploiting this issue requires control over memcached server hostnames and/or ports. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6340

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 5

Sources (Detail)

Source Url
MISC https://github.com/facebook/hhvm/commit/4bff3bfbe90d10451e4638c2118d1ad1117bb3e3
https://hhvm.com/blog/2018/12/18/hhvm-3.30.1.html

Alert History

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Date Informations
2021-05-05 01:31:52
  • Multiple Updates
2021-05-04 13:19:03
  • Multiple Updates
2021-04-22 02:35:25
  • Multiple Updates
2020-05-23 02:19:47
  • Multiple Updates
2020-05-23 01:18:49
  • Multiple Updates
2019-10-11 05:20:31
  • Multiple Updates
2019-10-10 05:20:45
  • Multiple Updates
2019-02-01 12:07:26
  • Multiple Updates
2019-01-14 17:19:30
  • Multiple Updates
2019-01-01 00:21:59
  • First insertion