UNIX symbolic link following in clone-master-clean-up - CVE-2021-32000

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Main Vulnerability Database Vulnerabilities #VU68560

UNIX symbolic link following in clone-master-clean-up - CVE-2021-32000

Published: October 20, 2022


Vulnerability identifier: #VU68560
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-32000
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
clone-master-clean-up
Software vendor:
SUSE

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a symlink following issue in the clone-master-clean-up.sh script of clone-master-clean-up. A local user can create a specially crafted symbolic link to a critical file on the system and delete it, causing a denial of service.


Remediation

Install updates from vendor's website.

External links