CVE-2021-3770

vim is vulnerable to Heap-based Buffer Overflow

vim is vulnerable to Heap-based Buffer Overflow

Vim is an advanced text editor that seeks to provide the power of the de-facto Unix editor 'Vi', with a more complete feature set. Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems.

Security Fix(es):

vim is vulnerable to Heap-based Buffer Overflow(CVE-2021-3770)

vim is vulnerable to Heap-based Buffer Overflow

Using retab with large value may lead to heap buffer overflow

Brian Carpenter discovered that vim incorrectly handled memory when opening certain files. If a user was tricked into opening a specially crafted file, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 21.04. (CVE-2021-3770)

Brian Carpenter discovered that vim incorrectly handled memory when opening certain files. If a user was tricked into opening a specially crafted file, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. (CVE-2021-3778)

Dhiraj Mishra discovered that vim incorrectly handled memory when opening certain files. If a user was tricked into opening a specially crafted file, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. (CVE-2021-3796)