SB2021021221 - Improper access control in OpenZFS
Published: February 12, 2021 Updated: November 27, 2023
Security Bulletin ID
SB2021021221
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2013-20001)
The vulnerability allows a remote attacker to gain unauthorized access to the network share.
The vulnerability exists due to improper validation of IPv6 addresses when an NFS share is exported to IPv6 address via the sharenfs feature. As a result, access restrictions are not applied. A remote attacker can connect to the share and gain access to files.
Remediation
Install update from vendor's website.