Re: Some question about vulnerability

Daniel Stenberg via curl-library <[email protected]>
Newsgroups gmane.comp.web.curl.library
Message-ID <[email protected]>
On Fri, 7 Mar 2025, 陈星杵 via curl-library wrote:

> regarding CVE-2022-43551[2], you mentioned that earlier versions might not 
> be vulnerable due to HSTS feature was not enabled by default and was labled 
> as experimental. So I'm wondering what the significance of doing this work 
> is. For the reason, I would like to ask, how do you determine the impact 
> range of a vulnerability? Do you rely on dynamic analysis by running a 
> Proof-of-Concept (PoC) or static code review?

I believe I am the individual having done this work for just about all past 
curl vulnerabilities.

I have never used a tool for this other than git and mostly manual code 
inspection. I wouldn't trust a tool to do it right (and I was not even aware 
there were tools for this), and for a lot of vulnerabilities we either don't 
have an easy reproducible (that works the same across versions) or we run into 
problems with building older curl versions etc.

-- 

  / daniel.haxx.se || https://rock-solid.curl.dev

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