#VU65399 Use-after-free in Vim - CVE-2022-2289

Vulnerability identifier: #VU65399

Vulnerability risk: Low

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:Clear]

CVE-ID: CVE-2022-2289

CWE-ID: CWE-416

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 use-after-free error in ex_diffgetput() function at diff.c:2790. A remote attacker can trick the victim into opening a specially crafted file and compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vim: before 9.0.0026, 9.0.0026

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External links
https://github.com/vim/vim/commit/c5274dd12224421f2430b30c53b881b9403d649e
https://huntr.dev/bounties/7447d2ea-db5b-4883-adf4-1eaf7deace64
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UXPO5EHDV6J4B27E65DOQGZFELUFPRSK/

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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.