CVE-2016-1255 Path traversal in n/a
Local attackers can gain root privileges via a symlink attack on a PostgreSQL log file in Debian and Ubuntu systems.
- 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-2016-1255?
CVE-2016-1255 is a high-severity path traversal vulnerability in n/a, published on 5 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The pg_ctlcluster script in postgresql-common package in Debian wheezy before 134wheezy5, in Debian jessie before 165+deb8u2, in Debian unstable before 178, in Ubuntu 12.04 LTS before 129ubuntu1.2, in Ubuntu 14.04 LTS before 154ubuntu1.1, in Ubuntu 16.04 LTS before 173ubuntu0.1, in Ubuntu 17.04 before 179ubuntu0.1, and in Ubuntu 17.10 before 184ubuntu1.1 allows local users to gain root privileges via a symlink attack on a logfile in /var/log/postgresql.
Weakness: CWE-59
Which versions are affected by CVE-2016-1255?
It affects 1 product.
Products include Debian Postgresql-Common.
How do I fix CVE-2016-1255?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2016-1255 being exploited?
There is no known exploitation of CVE-2016-1255 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2016-1255, DLA-774-1, ECHO-9914-6d37-4412, GHSA-67hr-wg4g-mjjv, UBUNTU-CVE-2016-1255.