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CVE-2018-6557

nvd nist
Published: Aug 21, 2018Modified: Nov 21, 2024

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7.0
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.0 / Impact: 5.9
Source: NVD

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.

Affected (3)

Base Files Project
1 product
Base Files
Canonical
1 product
Ubuntu Linux
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Base Files
Version 10.1ubuntu2.2
Canonical
Ubuntu Linux
Version 18.04
Ubuntu Linux
Version 18.10

Related CWEs

CWE-59
Improper Link Resolution Before File Access ('Link Following')
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

References (6)

Source: security@ubuntu.com
Third Party AdvisoryVDB Entry
Source: security@ubuntu.com
Broken LinkThird Party AdvisoryVDB Entry
Source: security@ubuntu.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.