CVE-2023-4781 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-2023-4781?

CVE-2023-4781 is a high-severity memory corruption vulnerability in Apple Macos, published on 5 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 9.0.1873.

Weakness: CWE-122

Which versions are affected by CVE-2023-4781?

It affects 4 products.

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

How do I fix CVE-2023-4781?

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-2023-4781 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4781 exists.

All Apple Macos vulnerabilities

Sources

Also known as ALPINE-CVE-2023-4781, AZL-28659, BELL-CVE-2023-4781, CLSA-2026-1770040871, DEBIAN-CVE-2023-4781, GHSA-hvfg-rr99-vxgg and 1 more.

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