CVE-2019-3811 Information disclosure in sssd
SSSD returns root directory for users without home directories, potentially exposing filesystem contents to services relying on chroot restrictions.
- 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-2019-3811?
CVE-2019-3811 is a medium-severity vulnerability in Debian Debian Linux, published on 15 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.
Which versions are affected by CVE-2019-3811?
It affects 5 products.
Linux distribution packages (11)
adcli SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 0.8.2-1.3.1 |
sssd SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 1.13.4-34.31.1 |
sssd SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 1.16.1-3.15.1 |
adcli SUSE:Linux Enterprise Server 12 SP3 | All versions | 0.8.2-1.3.1 |
sssd SUSE:Linux Enterprise Server 12 SP3 | All versions | 1.13.4-34.31.1 |
sssd SUSE:Linux Enterprise Server 12-LTSS | All versions | 1.11.5.1-10.16.1 |
adcli SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 0.8.2-1.3.1 |
sssd SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 1.13.4-34.31.1 |
sssd SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 1.13.4-34.31.1 |
adcli openSUSE:Leap 15.0 | All versions | 0.8.2-lp150.4.1 |
sssd openSUSE:Leap 15.0 | All versions | 1.16.1-lp150.2.9.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Fedoraproject Sssd, Opensuse Leap, Redhat Enterprise Linux.
How do I fix CVE-2019-3811?
Upgrade to a fixed version.
Is CVE-2019-3811 being exploited?
There is no known exploitation of CVE-2019-3811 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-3811, DLA-1635-1, GHSA-x3cx-wjrx-m7rj, SUSE-SU-2019:0542-1, SUSE-SU-2019:0552-1, SUSE-SU-2019:0805-1 and 2 more.