CVE-2016-4983 Information disclosure in dovecot22
Local attackers can read newly created SSL/TLS key files due to insecure permissions in the Dovecot RPM postinstall script.
- 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-2016-4983?
CVE-2016-4983 is a low-severity vulnerability in Dovecot Dovecot, published on 5 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A postinstall script in the dovecot rpm allows local users to read the contents of newly created SSL/TLS key files.
Weakness: CWE-732
Which versions are affected by CVE-2016-4983?
It affects 4 products.
Linux distribution packages (7)
dovecot22 SUSE:Linux Enterprise Server 12 SP1 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Server 12 SP2 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Software Development Kit 12 SP1 | All versions | 2.2.13-4.1 |
dovecot22 SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 2.2.13-4.1 |
Products include Dovecot Dovecot, Opensuse Leap, Opensuse Opensuse, Redhat Enterprise Linux.
How do I fix CVE-2016-4983?
Apply the vendor's patch.
Is CVE-2016-4983 being exploited?
There is no known exploitation of CVE-2016-4983 in the wild and no public exploit code.
Other vulnerabilities in Dovecot Dovecot
Sources
Also known as AZL-44988, GHSA-7cmr-c7xr-8xx6, SUSE-SU-2016:2915-1.