Heap-based buffer overflow in Vim

1) Heap-based buffer overflow

EUVDB-ID: #VU62360

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1160

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 within the get_one_sourceline() function. A remote attacker can trick the victim to open a specially crafted file, trigger a 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 updates from vendor's website.

Vulnerable software versions

Vim: 8.2.0 - 8.2.4646

External links

http://huntr.dev/bounties/a6f3222d-2472-439d-8881-111138a5694c
http://github.com/vim/vim/commit/2bdad6126778f907c0b98002bfebf0e611a3f5db
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C2CQXRLBIC4S7JQVEIN5QXKQPYWB5E3J/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RAIQTUO35U5WO2NYMY47637EMCVDJRSL/

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.