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VULNERABILITIES

CVE-2018-6557 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://usn.ubuntu.com/3748-1/ CVEVendor Advisory
http://www.securityfocus.com/bid/105148 CVEThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041530 CVEBroken LinkThird Party AdvisoryVDB Entry
https://usn.ubuntu.com/3748-1/ [email protected]Vendor Advisory
http://www.securityfocus.com/bid/105148 [email protected]Third Party AdvisoryVDB Entry

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]

Affected Products

ProductVersions
base-files project base-files
10.1ubuntu2.2

CPE

  • cpe:2.3:a:base-files_project:base-files:10.1ubuntu2.2:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
canonical ubuntu linux
18.04
18.10

CPE

  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-6557
NVD Published Date:
Aug 21, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]