CVE-2019-20079 Use after free in n/a
A use-after-free vulnerability in Vim's autocmd feature allows attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-20079?
CVE-2019-20079 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 30 Dec 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The autocmd feature in window.c in Vim before 8.1.2136 accesses freed memory.
Weakness: CWE-416
Which versions are affected by CVE-2019-20079?
It affects 2 products.
Products include Canonical Ubuntu Linux, Vim Vim.
How do I fix CVE-2019-20079?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2019-20079 being exploited?
There is no known exploitation of CVE-2019-20079 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2019-20079, GHSA-m46q-8w93-c76v, MGASA-2020-0151, UBUNTU-CVE-2019-20079.