This security bulletin contains one low risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect checking of the mount targets in libcontainer/rootfs_linux.go in runc. A local user can bypass AppArmor restrictions and perform unauthorized actions on the system, as demonstrated by overwriting the /proc directory with a malicious Doker image.Mitigation
Install updates from vendor's website.Vulnerable software versions
runc: 1.0.0 rc1 - 1.0.0 rc8CPE2.3
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?