Remote code execution in Vim

1) Heap-based buffer overflow

EUVDB-ID: #VU62875

Risk: High

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:Amber]

CVE-ID: CVE-2022-1619

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data in the cmdline_erase_chars() function in ex_getln.c. A remote attacker can trick the victim to open a specially crafted file, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Vim: 8.2.4800 - 8.2.4898

CPE2.3

• cpe:2.3:a:vim_org:vim:8.2.4898:*:*:*:*:*:*:*

External links

https://huntr.dev/bounties/b3200483-624e-4c76-a070-e246f62a7450
https://github.com/vim/vim/commit/ef02f16609ff0a26ffc6e20263523424980898fe

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.