Denial of service in Vim



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-48706
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Vim
Client/Desktop applications / Software for system administration

Vendor Vim.org

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU83442

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-48706

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 within the ex_substitute() function in src/charset.c when executing the ":s" command. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and crash the application.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Vim: before 9.0.2121

CPE2.3 External links

https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q
https://github.com/vim/vim/commit/26c11c56888d01e298cd8044caf8


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.



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