#VU64719 Out-of-bounds write in Vim - CVE-2022-2000

Vulnerability identifier: #VU64719

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2000

CWE-ID: CWE-787

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 compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in ex_docmd.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vim: 8.2.0 - 8.2.5062

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External links
https://huntr.dev/bounties/f61a64e2-d163-461b-a77e-46ab38e021f0
https://github.com/vim/vim/commit/44a3f3353e0407e9fffee138125a6927d1c9e7e5
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4JJNUS4AEVYSEJMCK6JZB57QHD5V2G4O/

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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.