Use-after-free in Vim

1) Use-after-free

EUVDB-ID: #VU83392

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-48231

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error when closing the window. A remote attacker can trick the victim to open a specially crafted file and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Vim: before 9.0.2106

External links

http://github.com/vim/vim/security/advisories/GHSA-8g46-v9ff-c765
http://github.com/vim/vim/commit/25aabc2b8ee1e19ced6f4da9d866cf9378fc4c5a
http://www.openwall.com/lists/oss-security/2023/11/16/1

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.