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List:       full-disclosure
Subject:    [FD] NULL pointer dereference in the function handle_viminfo_register() of vim
From:       Christian Brabandt <cb () 256bit ! org>
Date:       2024-01-29 7:48:20
Message-ID: ZbdYRI4h25CoMzC8 () 256bit ! org
[Download RAW message or body]


Meng Ruijie wrote:
> [Vulnerability description]
> A NULL pointer dereference in the function handle_viminfo_register() of vim v9.0 allows \
> attackers to cause a Denial of Service (DoS) via crafted file. 
> [VulnerabilityType Other]
> null pointer deference
> 
> [Vendor of Product]
> vim
> 
> [Affected Product Code Base]
> vim - 9.0
> 
> [Reference]
> https://github.com/vim/vim/issues/12652
> 
> [CVE Reference]
> The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name \
> CVE-2023-45921 to this vulnerability.

Meng,

This particular problem was fixed in Vim v9.0.1740 
https://github.com/vim/vim/commit/0a0764684591c7c6a5d722b628f11dc96208e853

I have no idea, why this issue is worth a CVE, because if an attacker
can modify your .viminfo file to make Vim crash, he already has the 
possibilities to do much more harm directly. So I don't think this is 
particular useful CVE. I'd also like to dispute this.

Thanks,
Christian
-- 
Ist der Bauer heut' gestorben, braucht er nichts zu essen morgen.
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