Denial of service in Vim



Published: 2023-09-06 | Updated: 2023-10-04
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4738
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Vim
Client/Desktop applications / Office applications

Vendor Vim.org

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU80504

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-2023-4738

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a boundary error within the vim_regsub_both() function in src/regexp.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Vim: 9.0.0000 - 9.0.1847

External links

http://github.com/vim/vim/releases/tag/v9.0.1848
http://github.com/vim/vim/commit/ced2c7394aafdc90fb7845e09b3a3fee23d48cb1
http://huntr.dev/bounties/9fc7dced-a7bb-4479-9718-f956df20f612


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.



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