bugGNU GRUB - Bugs: bug #65918, dns queries are case sensitive...

 
 

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bug #65918: dns queries are case sensitive (2.06, probably olded grub too)

Submitter:  Koskin Ilya <kasakoff>
Submitted:  Tue 25 Jun 2024 07:29:30 AM UTC
   
 
Category:  Network Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Release:  other
Release:  Reproducibility:  Every Time
Planned Release:  None

Tue 25 Jun 2024 07:29:30 AM UTC, original submission:  

sometimes dns response has another case than dns query. Here is the example:

nslookup ya.ru 127.0.0.1
Server: 127.0.0.1
Address: 127.0.0.1#53

Non-authoritative answer:
Name: YA.ru
Address: 5.255.255.242
Name: YA.ru
Address: 77.88.44.242
Name: YA.ru
Address: 77.88.55.242
Name: YA.ru
Address: 2a02:6b8::2:242

Here dns server is bind 9.
Not all dns servers act like this, but anyway dns should be case insensitive, RFC 4343.

Unfortunately grub (tested on 2.06 on fedora 40) is case sensitive, and it cannot resolve ya.ru, but can resolve YA.ru

Koskin Ilya <kasakoff>

 

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Attached Files
file #56200:  Screenshot_testpxe-uefi_2024-06-25_10:27:59.png added by kasakoff (7KiB - image/png)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -email is unavailable- added by kasakoff (Submitted the item)

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2024-06-25 kasakoff Attached File- Added Screenshot_testpxe-uefi_2024-06-25_10:27:59.png, #56200

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