CVE-2023-4738 Heap-based Buffer Overflow in vim/vim

High 7.8 Published Updated

A heap-based buffer overflow in Vim allows attackers to execute arbitrary code or cause a denial of service via crafted input.

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-2023-4738?

CVE-2023-4738 is a high-severity memory corruption vulnerability in Apple Macos, published on 2 Sep 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

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1848.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2023-4738?

It affects 4 products.

Products include Apple Macos, Debian Debian Linux, Neovim Neovim, Vim Vim.

How do I fix CVE-2023-4738?

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-2023-4738 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4738 exists.

All Apple Macos vulnerabilities

Sources

Also known as ALPINE-CVE-2023-4738, AZL-28661, BELL-CVE-2023-4738, DEBIAN-CVE-2023-4738, GHSA-x7vr-7frv-2rrh.

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