Integer overflow in Vim

1) Integer overflow

EUVDB-ID: #VU33141

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6350

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow when reading undo files. A remote attacker can trick the victim to open a specially crafted undo file, trigger integer 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: 8.0.0300 - 8.0.0377

External links

http://www.securityfocus.com/bid/96448
http://www.securitytracker.com/id/1037949
http://github.com/vim/vim/commit/0c8485f0e4931463c0f7986e1ea84a7d79f10c75
http://groups.google.com/forum/#!topic/vim_dev/L_dOHOOiQ5Q
http://groups.google.com/forum/#!topic/vim_dev/QPZc0CY9j3Y
http://security.gentoo.org/glsa/201706-26
http://usn.ubuntu.com/4309-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.