Re: RHEL9+, RSASHA1 and CVE-2025-8677

Ondřej Surý <[email protected]>
Newsgroups gmane.network.dns.bind9.user
Message-ID <55DBFCD7-9374-429F-B1EB-F116E628A917__20769.9747335695$1761912573$gmane$org@isc.org>
Can we have a couple of reproducers please?

We do run tests on RHEL-like 8,9,10 and no current test caught failure like that, so having a solid reproducer would be nice.

Ondrej
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Ondřej Surý — ISC (He/Him)

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> On 31. 10. 2025, at 13:05, [email protected] wrote:
> 
> 
>> 
>> No. Algorithm 5 and 7 are skipped earlier and should never reach the
>> code affected.
> 
> However, the observed behavior, which started this, is that a zone
> signed with both algorithm 7 and algorithm 13, failed. The client
> (me) received SERVFAIL.
> 
>> No crypto policy will change any of this, you do not have to lower
>> your security defaults to avoid that.
> 
> Well, the policy change that Bjørn made definitely make the zone
> in question resolve again.
> 
>> Please wait few days, proper fixed are on the way!
> 
> Unfortunately the real world doesn't have that kind of patience.
> 
> Steinar Haug, AS2116
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