#VU60776 Heap-based buffer overflow in Vim - CVE-2022-0572

Vulnerability identifier: #VU60776

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-0572

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Vim
Client/Desktop applications / Software for system administration

Vendor: Vim.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when repeatedly using :retab. A remote attacker can trick the victim to open a specially crafted file, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vim: 8.2.0 - 8.2.4358

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External links
https://huntr.dev/bounties/bf3e0643-03e9-4436-a1c8-74e7111c32bf
https://github.com/vim/vim/commit/6e28703a8e41f775f64e442c5d11ce1ff599aa3f
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4GOY5YWTP5QUY2EFLCL7AUWA2CV57C37/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.