USN-6851-1: Netplan vulnerabilities
Severity
medium
Vendor
VMware Tanzu
Versions Affected
- Canonical Ubuntu 22.04
- Cflinuxfs4
- Operations Manager Image 3.0.x
Description
Andreas Hasenack discovered that netplan incorrectly handled the permissions for netdev files containing wireguard configuration. An attacker could use this to obtain wireguard secret keys. It was discovered that netplan configuration could be manipulated into injecting arbitrary commands while setting up network interfaces. An attacker could use this to execute arbitrary commands or escalate privileges. Update Instructions: Run `sudo pro fix USN-6851-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libnetplan-dev - 0.104-0ubuntu2~20.04.5 libnetplan0 - 0.104-0ubuntu2~20.04.5 netplan.io - 0.104-0ubuntu2~20.04.5 No subscription required.
Fixed VMware Products and Versions
- Cflinuxfs4
- 1.99.0 or greater
- Jammy Stemcells
- 1.486 or greater
References
https://ubuntu.com/security/notices/USN-6851-1
https://www.cloudfoundry.org/blog/usn-6851-1
https://cve.mitre.org/cgi-bin/cvename.cgi?name=usn-6851-1
History
2024-06-26: Initial vulnerability report published.