Divide by zero in Vim

1) Division by zero

EUVDB-ID: #VU72341

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0512

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a divide by zero in the adjust_skipcol() function in move.c. A remote attacker can trick the victim to open a specially crafted file and crash the editor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Vim: 9.0.0000 - 9.0.1246

External links

http://github.com/vim/vim/commit/870219c58c0804bdc55419b2e455c06ac715a835
http://huntr.dev/bounties/de83736a-1936-4872-830b-f1e9b0ad2a74

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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