CVE-2016-1581 Information disclosure in n/a
Local users can read arbitrary container data due to world-readable permissions on the ZFS image file in LXD.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-1581?
CVE-2016-1581 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 9 Jun 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
LXD before 2.0.2 uses world-readable permissions for /var/lib/lxd/zfs.img when setting up a loop based ZFS pool, which allows local users to copy and read data from arbitrary containers via unspecified vectors.
Weakness: CWE-284
Which versions are affected by CVE-2016-1581?
It affects 2 products.
Products include Canonical Lxd, Canonical Ubuntu Linux.
How do I fix CVE-2016-1581?
Upgrade to a fixed version.
Is CVE-2016-1581 being exploited?
There is no known exploitation of CVE-2016-1581 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
- CVE-2026-66897 Instance template path traversal allows arbitrary host file write as root
- CVE-2026-62420 Cross-project cluster migration bypasses project restrictions via cluster notification flag
- CVE-2026-63293 Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root
- CVE-2026-63294 Root RCE via image backup.yaml symlink
- CVE-2026-63296 Project restriction bypass via instance migration config override
Sources
Also known as UBUNTU-CVE-2016-1581.