SB2021012530 - Insecure archive handling in oras
Published: January 25, 2021 Updated: January 3, 2023
Security Bulletin ID
SB2021012530
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Link following (CVE-ID: CVE-2021-21272)
The vulnerability allows a remote attacker to overwrite files on the system.
The vulnerability exists due to insecure hardlink following when extracting files from an archive. A remote attacker can trick the victim into downloading a gzipped tarballs that will be automatically extracted to the user-specified directory where the tarball can have symbolic links and hard links.
Remediation
Install update from vendor's website.