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Message-ID: <4e37271c-6fd1-4717-9220-55fc583958fe@isc.org>
Date: Wed, 16 Jul 2025 12:25:29 -0500
From: "Everett B. Fulton" <ebf@....org>
To: oss-security@...ts.openwall.com
Cc: security-officer@....org
Subject: ISC has disclosed one vulnerability in BIND 9 (CVE-2025-40777)

On 16 July 2025 we (Internet Systems Consortium) disclosed one 
vulnerability affecting our BIND 9 software:

- CVE-2025-40777:       A possible assertion failure when 
'stale-answer-client-timeout' is set to '0' 
https://kb.isc.org/docs/cve-2025-40777

New versions of BIND 9 are available from https://www.isc.org/downloads

Operators and package maintainers who prefer to apply patches 
selectively can find individual vulnerability-specific patches in the 
"patches" subdirectory of each published release directory:

- https://downloads.isc.org/isc/bind9/9.20.11/patches/
- https://downloads.isc.org/isc/bind9/9.21.10/patches/

With the public announcement of these vulnerabilities, the embargo 
period is ended and any updated software packages that have been 
prepared may be released.

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