#VU66785 NULL pointer dereference in Vim - CVE-2022-2923

Vulnerability identifier: #VU66785

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-2923

CWE-ID: CWE-476

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 perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the sug_filltree() function in spellfile.c. A remote attacker can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Vim: 9.0.0000 - 9.0.0239

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External links
https://huntr.dev/bounties/fd3a3ab8-ab0f-452f-afea-8c613e283fd2
https://github.com/vim/vim/commit/6669de1b235843968e88844ca6d3c8dec4b01a9e

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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.