CVE-2020-10967 Denial of service in n/a
Remote unauthenticated attackers can crash Dovecot's lmtp or submission processes by sending mail with an empty localpart.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-10967?
CVE-2020-10967 is a medium-severity denial of service vulnerability in Dovecot Dovecot, published on 18 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Weakness: CWE-20
Which versions are affected by CVE-2020-10967?
It affects 1 product.
Products include Dovecot Dovecot.
How do I fix CVE-2020-10967?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-10967 being exploited?
There is no known exploitation of CVE-2020-10967 in the wild and no public exploit code.
Other vulnerabilities in Dovecot Dovecot
Sources
Also known as ALPINE-CVE-2020-10967, DEBIAN-CVE-2020-10967, GHSA-qm25-rqq9-7jcr, UBUNTU-CVE-2020-10967.