Le mardi 11 février 2025, 13:10:13 UTC Lucas Kanashiro a écrit :

Ok and ELTS 2.5 is also affected I suppose..;

Will do

Bastien
> Hi,
> 
> A regression in the latest ruby2.7 update was found by a Ubuntu user and 
> reported here:
> 
> https://bugs.launchpad.net/ubuntu/+source/ruby2.7/+bug/2097527
> 
> Since we addressed the same CVEs in our latest update, I tried to 
> reproduce this with it, and we are also impacted:
> 
> (bullseye-amd64-sbuild)root@atena:~# dpkg -l | grep ruby2.7
> ii  libruby2.7:amd64          2.7.4-1+deb11u3 amd64        Libraries 
> necessary to run Ruby 2.7
> ii  ruby2.7                   2.7.4-1+deb11u3 amd64        Interpreter 
> of object-oriented scripting language Ruby
> (bullseye-amd64-sbuild)root@atena:~# ruby -r rexml/document -e 
> 'REXML::Document.new(%(<?xml version="1.0"?><html 
> xmlns="http://www.w3.org/1999/xhtml"; xml:lang="ja" lang="ja"></html>))'
> Traceback (most recent call last):
>      7: from -e:1:in `<main>'
>      6: from -e:1:in `new'
>      5: from /usr/lib/ruby/2.7.0/rexml/document.rb:45:in `initialize'
>      4: from /usr/lib/ruby/2.7.0/rexml/document.rb:288:in `build'
>      3: from /usr/lib/ruby/2.7.0/rexml/parsers/treeparser.rb:23:in `parse'
>      2: from /usr/lib/ruby/2.7.0/rexml/parsers/baseparser.rb:209:in `pull'
>      1: from /usr/lib/ruby/2.7.0/rexml/parsers/baseparser.rb:432:in 
> `pull_event'
> /usr/lib/ruby/2.7.0/rexml/parsers/baseparser.rb:748:in 
> `parse_attributes': Namespace conflict in adding attribute "lang": 
> Prefix "xml" = "" and prefix "" = "" (REXML::ParseException)
> Line: 1
> Position: 88
> Last 80 unconsumed characters:
>  >
> 
> The fix for the above seems straightforward. This is the patch applied 
> by Ubuntu:
> 
> https://pastebin.ubuntu.com/p/VCvB6DrHnm/
> <https://pastebin.ubuntu.com/p/VCvB6DrHnm/>
> 
> Bastien, I'd like to know if you want to follow-up on that since you 
> released this DLA. Otherwise, I can release the fix for this regression.
> 
> Cheers
> 
> 

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