CVE-2023-48231 Use-After-Free in win_close() in vim
A use-after-free flaw in Vim's window closing logic allows attackers to crash the application, though code execution is not proven.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-48231?
CVE-2023-48231 is a low-severity use after free vulnerability in Fedoraproject Fedora, published on 16 Nov 2023. 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
Vim is an open source command line text editor. When closing a window, vim may try to access already freed window structure. Exploitation beyond crashing the application has not been shown to be viable. This issue has been addressed in commit `25aabc2b` which has been included in release version 9.0.2106. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-416
Which versions are affected by CVE-2023-48231?
It affects 2 products.
Products include Fedoraproject Fedora, Vim Vim.
How do I fix CVE-2023-48231?
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-2023-48231 being exploited?
There is no known exploitation of CVE-2023-48231 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as ALPINE-CVE-2023-48231, AZL-32025, BELL-CVE-2023-48231, DEBIAN-CVE-2023-48231, ECHO-bdcf-b026-4ab2, GHSA-8g46-v9ff-c765 and 2 more.