#VU67435 Heap-based buffer overflow in Vim
Vulnerability identifier: #VU67435
Vulnerability 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:
CWE-ID:
CWE-122
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Vim
Client/Desktop applications /
Software for system administration
Vendor: Vim.org
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 utfc_ptr2len() function at mbyte.c. A remote attacker can trick the victim to open a specially crafted fule, 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: 9.0.0000 - 9.0.0482
External links
http://github.com/vim/vim/commit/c249913edc35c0e666d783bfc21595cf9f7d9e0d
http://huntr.dev/bounties/90fdf374-bf04-4386-8a23-38c83b88f0da
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.
