CVE-2019-7524 Memory corruption in n/a
A local attacker can exploit a buffer overflow in Dovecot's indexer-worker to elevate privileges to root.
- 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-2019-7524?
CVE-2019-7524 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 28 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker process, which can be used to elevate to root. This occurs because of missing checks in the fts and pop3-uidl components.
Weakness: CWE-119
Which versions are affected by CVE-2019-7524?
It affects 4 products.
Linux distribution packages (2)
dovecot23 SUSE:Linux Enterprise Module for Server Applications 15 | All versions | 2.3.3-4.10.1 |
dovecot23 openSUSE:Leap 15.0 | All versions | 2.3.3-lp150.8.2 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Dovecot Dovecot, Opensuse Leap.
How do I fix CVE-2019-7524?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-7524 being exploited?
There is no known exploitation of CVE-2019-7524 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2019-7524, DEBIAN-CVE-2019-7524, DLA-1736-1, DSA-4418-1, GHSA-64hp-rrrv-2xwx, MGASA-2019-0141 and 4 more.