Executive Summary

Informations
Name CVE-2018-6557 First vendor Publication 2018-08-21
Vendor Cve Last vendor Modification 2023-01-18

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low 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:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6557

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/105148
SECTRACK http://www.securitytracker.com/id/1041530
UBUNTU https://usn.ubuntu.com/3748-1/

Alert History

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Date Informations
2023-01-19 00:27:37
  • Multiple Updates
2021-05-04 13:19:50
  • Multiple Updates
2021-04-22 02:34:24
  • Multiple Updates
2020-05-23 01:18:55
  • Multiple Updates
2018-11-21 21:20:56
  • Multiple Updates
2018-08-28 17:20:10
  • Multiple Updates
2018-08-22 17:19:31
  • Multiple Updates
2018-08-21 21:20:11
  • First insertion